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/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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#include "apr_strings.h"
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#include "apr_fnmatch.h"
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#include "apr_thread_proc.h" /* for RLIMIT stuff */
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#include "apr_hooks.h"
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#define APR_WANT_IOVEC
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#define APR_WANT_STRFUNC
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#define APR_WANT_MEMFUNC
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#include "ap_config.h"
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#include "http_config.h"
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#include "http_core.h"
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#include "http_protocol.h" /* For index_of_response(). Grump. */
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#include "http_request.h"
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#include "http_vhost.h"
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#include "http_main.h" /* For the default_handler below... */
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#include "http_connection.h"
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#include "apr_buckets.h"
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#include "util_filter.h"
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#include "util_ebcdic.h"
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#include "mpm_common.h"
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#include "scoreboard.h"
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#include "mod_proxy.h"
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#include "ap_listen.h"
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#include "mod_so.h" /* for ap_find_loaded_module_symbol */
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/* LimitRequestBody handling */
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#define AP_LIMIT_REQ_BODY_UNSET ((apr_off_t) -1)
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#define AP_DEFAULT_LIMIT_REQ_BODY ((apr_off_t) 0)
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/* LimitXMLRequestBody handling */
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#define AP_LIMIT_UNSET ((long) -1)
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#define AP_DEFAULT_LIMIT_XML_BODY ((size_t)1000000)
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#define AP_MIN_SENDFILE_BYTES (256)
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/* maximum include nesting level */
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#ifndef AP_MAX_INCLUDE_DEPTH
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#define AP_MAX_INCLUDE_DEPTH (128)
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APR_HOOK_LINK(get_mgmt_items)
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AP_IMPLEMENT_HOOK_RUN_ALL(int, get_mgmt_items,
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(apr_pool_t *p, const char *val, apr_hash_t *ht),
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(p, val, ht), OK, DECLINED)
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/* Server core module... This module provides support for really basic
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* server operations, including options and commands which control the
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* operation of other modules. Consider this the bureaucracy module.
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* The core module also defines handlers, etc., do handle just enough
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* to allow a server with the core module ONLY to actually serve documents
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* (though it slaps DefaultType on all of 'em); this was useful in testing,
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* but may not be worth preserving.
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* This file could almost be mod_core.c, except for the stuff which affects
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* the http_conf_globals.
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/* Handles for core filters */
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AP_DECLARE_DATA ap_filter_rec_t *ap_subreq_core_filter_handle;
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AP_DECLARE_DATA ap_filter_rec_t *ap_core_output_filter_handle;
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AP_DECLARE_DATA ap_filter_rec_t *ap_content_length_filter_handle;
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AP_DECLARE_DATA ap_filter_rec_t *ap_core_input_filter_handle;
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/* magic pointer for ErrorDocument xxx "default" */
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static char errordocument_default;
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static void *create_core_dir_config(apr_pool_t *a, char *dir)
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core_dir_config *conf;
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conf = (core_dir_config *)apr_pcalloc(a, sizeof(core_dir_config));
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/* conf->r and conf->d[_*] are initialized by dirsection() or left NULL */
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conf->opts = dir ? OPT_UNSET : OPT_UNSET|OPT_ALL;
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conf->opts_add = conf->opts_remove = OPT_NONE;
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conf->override = dir ? OR_UNSET : OR_UNSET|OR_ALL;
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conf->override_opts = OPT_UNSET | OPT_ALL | OPT_INCNOEXEC | OPT_SYM_OWNER
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conf->content_md5 = 2;
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conf->accept_path_info = 3;
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conf->use_canonical_name = USE_CANONICAL_NAME_UNSET;
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conf->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_UNSET;
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conf->hostname_lookups = HOSTNAME_LOOKUP_UNSET;
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conf->satisfy = apr_palloc(a, sizeof(*conf->satisfy) * METHODS);
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for (i = 0; i < METHODS; ++i) {
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conf->satisfy[i] = SATISFY_NOSPEC;
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conf->limit_cpu = NULL;
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#if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
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conf->limit_mem = NULL;
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conf->limit_nproc = NULL;
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conf->limit_req_body = AP_LIMIT_REQ_BODY_UNSET;
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conf->limit_xml_body = AP_LIMIT_UNSET;
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conf->sec_file = apr_array_make(a, 2, sizeof(ap_conf_vector_t *));
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conf->server_signature = srv_sig_unset;
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conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET;
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conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
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/* Overriding all negotiation
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conf->mime_type = NULL;
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conf->handler = NULL;
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conf->output_filters = NULL;
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conf->input_filters = NULL;
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* Flag for use of inodes in ETags.
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conf->etag_bits = ETAG_UNSET;
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conf->etag_add = ETAG_UNSET;
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conf->etag_remove = ETAG_UNSET;
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conf->enable_mmap = ENABLE_MMAP_UNSET;
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conf->enable_sendfile = ENABLE_SENDFILE_UNSET;
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conf->allow_encoded_slashes = 0;
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* Overlay one hash table of ct_output_filters onto another
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static void *merge_ct_filters(apr_pool_t *p,
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const void *overlay_val,
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const void *base_val,
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ap_filter_rec_t *cur;
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const ap_filter_rec_t *overlay_info = (const ap_filter_rec_t *)overlay_val;
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const ap_filter_rec_t *base_info = (const ap_filter_rec_t *)base_val;
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while (overlay_info) {
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ap_filter_rec_t *new;
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new = apr_pcalloc(p, sizeof(ap_filter_rec_t));
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new->name = apr_pstrdup(p, overlay_info->name);
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overlay_info = overlay_info->next;
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/* We can't have dups. */
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if (!strcasecmp(base_info->name, f->name)) {
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f = apr_pcalloc(p, sizeof(ap_filter_rec_t));
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f->name = apr_pstrdup(p, base_info->name);
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base_info = base_info->next;
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static void *merge_core_dir_configs(apr_pool_t *a, void *basev, void *newv)
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core_dir_config *base = (core_dir_config *)basev;
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core_dir_config *new = (core_dir_config *)newv;
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core_dir_config *conf;
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/* Create this conf by duplicating the base, replacing elements
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* (or creating copies for merging) where new-> values exist.
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conf = (core_dir_config *)apr_palloc(a, sizeof(core_dir_config));
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memcpy(conf, base, sizeof(core_dir_config));
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conf->d_is_fnmatch = new->d_is_fnmatch;
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conf->d_components = new->d_components;
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if (new->opts & OPT_UNSET) {
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/* there was no explicit setting of new->opts, so we merge
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* preserve the invariant (opts_add & opts_remove) == 0
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conf->opts_add = (conf->opts_add & ~new->opts_remove) | new->opts_add;
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conf->opts_remove = (conf->opts_remove & ~new->opts_add)
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conf->opts = (conf->opts & ~conf->opts_remove) | conf->opts_add;
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if ((base->opts & OPT_INCNOEXEC) && (new->opts & OPT_INCLUDES)) {
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conf->opts = (conf->opts & ~OPT_INCNOEXEC) | OPT_INCLUDES;
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/* otherwise we just copy, because an explicit opts setting
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* overrides all earlier +/- modifiers
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conf->opts = new->opts;
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conf->opts_add = new->opts_add;
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conf->opts_remove = new->opts_remove;
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if (!(new->override & OR_UNSET)) {
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conf->override = new->override;
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if (!(new->override_opts & OPT_UNSET)) {
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conf->override_opts = new->override_opts;
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if (new->ap_default_type) {
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conf->ap_default_type = new->ap_default_type;
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if (new->ap_auth_type) {
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conf->ap_auth_type = new->ap_auth_type;
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if (new->ap_auth_name) {
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conf->ap_auth_name = new->ap_auth_name;
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if (new->ap_requires) {
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conf->ap_requires = new->ap_requires;
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if (conf->response_code_strings == NULL) {
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conf->response_code_strings = new->response_code_strings;
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else if (new->response_code_strings != NULL) {
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/* If we merge, the merge-result must have it's own array
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conf->response_code_strings = apr_palloc(a,
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sizeof(*conf->response_code_strings) * RESPONSE_CODES);
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memcpy(conf->response_code_strings, base->response_code_strings,
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sizeof(*conf->response_code_strings) * RESPONSE_CODES);
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for (i = 0; i < RESPONSE_CODES; ++i) {
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if (new->response_code_strings[i] != NULL) {
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conf->response_code_strings[i] = new->response_code_strings[i];
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/* Otherwise we simply use the base->response_code_strings array
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if (new->hostname_lookups != HOSTNAME_LOOKUP_UNSET) {
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conf->hostname_lookups = new->hostname_lookups;
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if ((new->content_md5 & 2) == 0) {
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conf->content_md5 = new->content_md5;
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if (new->accept_path_info != 3) {
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conf->accept_path_info = new->accept_path_info;
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if (new->use_canonical_name != USE_CANONICAL_NAME_UNSET) {
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conf->use_canonical_name = new->use_canonical_name;
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if (new->use_canonical_phys_port != USE_CANONICAL_PHYS_PORT_UNSET) {
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conf->use_canonical_phys_port = new->use_canonical_phys_port;
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if (new->limit_cpu) {
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conf->limit_cpu = new->limit_cpu;
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#if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
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if (new->limit_mem) {
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conf->limit_mem = new->limit_mem;
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if (new->limit_nproc) {
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conf->limit_nproc = new->limit_nproc;
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if (new->limit_req_body != AP_LIMIT_REQ_BODY_UNSET) {
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conf->limit_req_body = new->limit_req_body;
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if (new->limit_xml_body != AP_LIMIT_UNSET)
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conf->limit_xml_body = new->limit_xml_body;
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conf->limit_xml_body = base->limit_xml_body;
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if (!conf->sec_file) {
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conf->sec_file = new->sec_file;
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else if (new->sec_file) {
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/* If we merge, the merge-result must have it's own array
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conf->sec_file = apr_array_append(a, base->sec_file, new->sec_file);
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/* Otherwise we simply use the base->sec_file array
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/* use a separate ->satisfy[] array either way */
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conf->satisfy = apr_palloc(a, sizeof(*conf->satisfy) * METHODS);
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for (i = 0; i < METHODS; ++i) {
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if (new->satisfy[i] != SATISFY_NOSPEC) {
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conf->satisfy[i] = new->satisfy[i];
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conf->satisfy[i] = base->satisfy[i];
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if (new->server_signature != srv_sig_unset) {
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conf->server_signature = new->server_signature;
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if (new->add_default_charset != ADD_DEFAULT_CHARSET_UNSET) {
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conf->add_default_charset = new->add_default_charset;
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conf->add_default_charset_name = new->add_default_charset_name;
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/* Overriding all negotiation
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if (new->mime_type) {
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conf->mime_type = new->mime_type;
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conf->handler = new->handler;
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if (new->output_filters) {
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conf->output_filters = new->output_filters;
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if (new->input_filters) {
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conf->input_filters = new->input_filters;
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if (conf->ct_output_filters && new->ct_output_filters) {
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conf->ct_output_filters = apr_hash_merge(a,
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new->ct_output_filters,
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conf->ct_output_filters,
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else if (new->ct_output_filters) {
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conf->ct_output_filters = apr_hash_copy(a, new->ct_output_filters);
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else if (conf->ct_output_filters) {
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/* That memcpy above isn't enough. */
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conf->ct_output_filters = apr_hash_copy(a, base->ct_output_filters);
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* Now merge the setting of the FileETag directive.
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if (new->etag_bits == ETAG_UNSET) {
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(conf->etag_add & (~ new->etag_remove)) | new->etag_add;
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(conf->opts_remove & (~ new->etag_add)) | new->etag_remove;
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(conf->etag_bits & (~ conf->etag_remove)) | conf->etag_add;
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conf->etag_bits = new->etag_bits;
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conf->etag_add = new->etag_add;
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conf->etag_remove = new->etag_remove;
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if (conf->etag_bits != ETAG_NONE) {
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conf->etag_bits &= (~ ETAG_NONE);
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if (new->enable_mmap != ENABLE_MMAP_UNSET) {
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conf->enable_mmap = new->enable_mmap;
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if (new->enable_sendfile != ENABLE_SENDFILE_UNSET) {
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conf->enable_sendfile = new->enable_sendfile;
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conf->allow_encoded_slashes = new->allow_encoded_slashes;
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static void *create_core_server_config(apr_pool_t *a, server_rec *s)
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core_server_config *conf;
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int is_virtual = s->is_virtual;
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conf = (core_server_config *)apr_pcalloc(a, sizeof(core_server_config));
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conf->gprof_dir = NULL;
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conf->access_name = is_virtual ? NULL : DEFAULT_ACCESS_FNAME;
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conf->ap_document_root = is_virtual ? NULL : DOCUMENT_LOCATION;
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conf->sec_dir = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
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conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
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/* recursion stopper */
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conf->redirect_limit = 0; /* 0 == unset */
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conf->subreq_limit = 0;
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conf->protocol = NULL;
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conf->accf_map = apr_table_make(a, 5);
470
#ifdef APR_TCP_DEFER_ACCEPT
471
apr_table_set(conf->accf_map, "http", "data");
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apr_table_set(conf->accf_map, "https", "data");
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#if APR_HAS_SO_ACCEPTFILTER
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#ifndef ACCEPT_FILTER_NAME
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#define ACCEPT_FILTER_NAME "httpready"
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#ifdef __FreeBSD_version
479
#if __FreeBSD_version < 411000 /* httpready broken before 4.1.1 */
480
#undef ACCEPT_FILTER_NAME
481
#define ACCEPT_FILTER_NAME "dataready"
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apr_table_set(conf->accf_map, "http", ACCEPT_FILTER_NAME);
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apr_table_set(conf->accf_map, "https", "dataready");
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conf->trace_enable = AP_TRACE_UNSET;
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static void *merge_core_server_configs(apr_pool_t *p, void *basev, void *virtv)
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core_server_config *base = (core_server_config *)basev;
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core_server_config *virt = (core_server_config *)virtv;
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core_server_config *conf;
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conf = (core_server_config *)apr_palloc(p, sizeof(core_server_config));
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memcpy(conf, virt, sizeof(core_server_config));
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if (!conf->access_name) {
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conf->access_name = base->access_name;
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if (!conf->ap_document_root) {
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conf->ap_document_root = base->ap_document_root;
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if (!conf->protocol) {
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conf->protocol = base->protocol;
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conf->sec_dir = apr_array_append(p, base->sec_dir, virt->sec_dir);
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conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url);
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conf->redirect_limit = virt->redirect_limit
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? virt->redirect_limit
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: base->redirect_limit;
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conf->subreq_limit = virt->subreq_limit
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: base->subreq_limit;
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conf->trace_enable = (virt->trace_enable != AP_TRACE_UNSET)
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: base->trace_enable;
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/* Add per-directory configuration entry (for <directory> section);
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* these are part of the core server config.
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AP_CORE_DECLARE(void) ap_add_per_dir_conf(server_rec *s, void *dir_config)
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core_server_config *sconf = ap_get_module_config(s->module_config,
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void **new_space = (void **)apr_array_push(sconf->sec_dir);
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*new_space = dir_config;
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AP_CORE_DECLARE(void) ap_add_per_url_conf(server_rec *s, void *url_config)
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core_server_config *sconf = ap_get_module_config(s->module_config,
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void **new_space = (void **)apr_array_push(sconf->sec_url);
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*new_space = url_config;
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AP_CORE_DECLARE(void) ap_add_file_conf(core_dir_config *conf, void *url_config)
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void **new_space = (void **)apr_array_push(conf->sec_file);
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*new_space = url_config;
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/* We need to do a stable sort, qsort isn't stable. So to make it stable
563
* we'll be maintaining the original index into the list, and using it
564
* as the minor key during sorting. The major key is the number of
565
* components (where the root component is zero).
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struct reorder_sort_rec {
568
ap_conf_vector_t *elt;
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static int reorder_sorter(const void *va, const void *vb)
574
const struct reorder_sort_rec *a = va;
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const struct reorder_sort_rec *b = vb;
576
core_dir_config *core_a;
577
core_dir_config *core_b;
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core_a = ap_get_module_config(a->elt, &core_module);
580
core_b = ap_get_module_config(b->elt, &core_module);
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/* a regex always sorts after a non-regex
584
if (!core_a->r && core_b->r) {
587
else if (core_a->r && !core_b->r) {
591
/* we always sort next by the number of components
593
if (core_a->d_components < core_b->d_components) {
596
else if (core_a->d_components > core_b->d_components) {
600
/* They have the same number of components, we now have to compare
601
* the minor key to maintain the original order (from the config.)
603
return a->orig_index - b->orig_index;
606
void ap_core_reorder_directories(apr_pool_t *p, server_rec *s)
608
core_server_config *sconf;
609
apr_array_header_t *sec_dir;
610
struct reorder_sort_rec *sortbin;
612
ap_conf_vector_t **elts;
616
sconf = ap_get_module_config(s->module_config, &core_module);
617
sec_dir = sconf->sec_dir;
618
nelts = sec_dir->nelts;
619
elts = (ap_conf_vector_t **)sec_dir->elts;
622
/* simple case of already being sorted... */
623
/* We're not checking this condition to be fast... we're checking
624
* it to avoid trying to palloc zero bytes, which can trigger some
625
* memory debuggers to barf
630
/* we have to allocate tmp space to do a stable sort */
631
apr_pool_create(&tmp, p);
632
sortbin = apr_palloc(tmp, sec_dir->nelts * sizeof(*sortbin));
633
for (i = 0; i < nelts; ++i) {
634
sortbin[i].orig_index = i;
635
sortbin[i].elt = elts[i];
638
qsort(sortbin, nelts, sizeof(*sortbin), reorder_sorter);
640
/* and now copy back to the original array */
641
for (i = 0; i < nelts; ++i) {
642
elts[i] = sortbin[i].elt;
645
apr_pool_destroy(tmp);
648
/*****************************************************************
650
* There are some elements of the core config structures in which
651
* other modules have a legitimate interest (this is ugly, but necessary
652
* to preserve NCSA back-compatibility). So, we have a bunch of accessors
656
AP_DECLARE(int) ap_allow_options(request_rec *r)
658
core_dir_config *conf =
659
(core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
664
AP_DECLARE(int) ap_allow_overrides(request_rec *r)
666
core_dir_config *conf;
667
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
670
return conf->override;
673
AP_DECLARE(const char *) ap_auth_type(request_rec *r)
675
core_dir_config *conf;
677
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
680
return conf->ap_auth_type;
683
AP_DECLARE(const char *) ap_auth_name(request_rec *r)
685
core_dir_config *conf;
687
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
690
return conf->ap_auth_name;
693
AP_DECLARE(const char *) ap_default_type(request_rec *r)
695
core_dir_config *conf;
697
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
700
return conf->ap_default_type
701
? conf->ap_default_type
702
: DEFAULT_CONTENT_TYPE;
705
AP_DECLARE(const char *) ap_document_root(request_rec *r) /* Don't use this! */
707
core_server_config *conf;
709
conf = (core_server_config *)ap_get_module_config(r->server->module_config,
712
return conf->ap_document_root;
715
AP_DECLARE(const apr_array_header_t *) ap_requires(request_rec *r)
717
core_dir_config *conf;
719
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
722
return conf->ap_requires;
725
AP_DECLARE(int) ap_satisfies(request_rec *r)
727
core_dir_config *conf;
729
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
732
return conf->satisfy[r->method_number];
735
/* Should probably just get rid of this... the only code that cares is
736
* part of the core anyway (and in fact, it isn't publicised to other
740
char *ap_response_code_string(request_rec *r, int error_index)
742
core_dir_config *dirconf;
743
core_request_config *reqconf;
745
/* check for string registered via ap_custom_response() first */
746
reqconf = (core_request_config *)ap_get_module_config(r->request_config,
748
if (reqconf->response_code_strings != NULL &&
749
reqconf->response_code_strings[error_index] != NULL) {
750
return reqconf->response_code_strings[error_index];
753
/* check for string specified via ErrorDocument */
754
dirconf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
757
if (dirconf->response_code_strings == NULL) {
761
if (dirconf->response_code_strings[error_index] == &errordocument_default) {
765
return dirconf->response_code_strings[error_index];
769
/* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
770
static APR_INLINE void do_double_reverse (conn_rec *conn)
775
if (conn->double_reverse) {
780
if (conn->remote_host == NULL || conn->remote_host[0] == '\0') {
781
/* single reverse failed, so don't bother */
782
conn->double_reverse = -1;
786
rv = apr_sockaddr_info_get(&sa, conn->remote_host, APR_UNSPEC, 0, 0, conn->pool);
787
if (rv == APR_SUCCESS) {
789
if (apr_sockaddr_equal(sa, conn->remote_addr)) {
790
conn->double_reverse = 1;
798
conn->double_reverse = -1;
801
AP_DECLARE(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
802
int type, int *str_is_ip)
804
int hostname_lookups;
805
int ignored_str_is_ip;
807
if (!str_is_ip) { /* caller doesn't want to know */
808
str_is_ip = &ignored_str_is_ip;
812
/* If we haven't checked the host name, and we want to */
815
((core_dir_config *)ap_get_module_config(dir_config, &core_module))
818
if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) {
819
hostname_lookups = HOSTNAME_LOOKUP_OFF;
824
hostname_lookups = HOSTNAME_LOOKUP_OFF;
827
if (type != REMOTE_NOLOOKUP
828
&& conn->remote_host == NULL
829
&& (type == REMOTE_DOUBLE_REV
830
|| hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
832
if (apr_getnameinfo(&conn->remote_host, conn->remote_addr, 0)
834
ap_str_tolower(conn->remote_host);
836
if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
837
do_double_reverse(conn);
838
if (conn->double_reverse != 1) {
839
conn->remote_host = NULL;
844
/* if failed, set it to the NULL string to indicate error */
845
if (conn->remote_host == NULL) {
846
conn->remote_host = "";
850
if (type == REMOTE_DOUBLE_REV) {
851
do_double_reverse(conn);
852
if (conn->double_reverse == -1) {
858
* Return the desired information; either the remote DNS name, if found,
859
* or either NULL (if the hostname was requested) or the IP address
860
* (if any identifier was requested).
862
if (conn->remote_host != NULL && conn->remote_host[0] != '\0') {
863
return conn->remote_host;
866
if (type == REMOTE_HOST || type == REMOTE_DOUBLE_REV) {
871
return conn->remote_ip;
877
* Optional function coming from mod_ident, used for looking up ident user
879
static APR_OPTIONAL_FN_TYPE(ap_ident_lookup) *ident_lookup;
881
AP_DECLARE(const char *) ap_get_remote_logname(request_rec *r)
883
if (r->connection->remote_logname != NULL) {
884
return r->connection->remote_logname;
888
return ident_lookup(r);
894
/* There are two options regarding what the "name" of a server is. The
895
* "canonical" name as defined by ServerName and Port, or the "client's
896
* name" as supplied by a possible Host: header or full URI.
898
* The DNS option to UseCanonicalName causes this routine to do a
899
* reverse lookup on the local IP address of the connection and use
900
* that for the ServerName. This makes its value more reliable while
901
* at the same time allowing Demon's magic virtual hosting to work.
902
* The assumption is that DNS lookups are sufficiently quick...
905
AP_DECLARE(const char *) ap_get_server_name(request_rec *r)
907
conn_rec *conn = r->connection;
911
d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
914
switch (d->use_canonical_name) {
915
case USE_CANONICAL_NAME_ON:
916
retval = r->server->server_hostname;
918
case USE_CANONICAL_NAME_DNS:
919
if (conn->local_host == NULL) {
920
if (apr_getnameinfo(&conn->local_host,
921
conn->local_addr, 0) != APR_SUCCESS)
922
conn->local_host = apr_pstrdup(conn->pool,
923
r->server->server_hostname);
925
ap_str_tolower(conn->local_host);
928
retval = conn->local_host;
930
case USE_CANONICAL_NAME_OFF:
931
case USE_CANONICAL_NAME_UNSET:
932
retval = r->hostname ? r->hostname : r->server->server_hostname;
935
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
936
"ap_get_server_name: Invalid UCN Option somehow");
937
retval = "localhost";
944
* Get the current server name from the request for the purposes
945
* of using in a URL. If the server name is an IPv6 literal
946
* address, it will be returned in URL format (e.g., "[fe80::1]").
948
static const char *get_server_name_for_url(request_rec *r)
950
const char *plain_server_name = ap_get_server_name(r);
953
if (ap_strchr_c(plain_server_name, ':')) { /* IPv6 literal? */
954
return apr_psprintf(r->pool, "[%s]", plain_server_name);
957
return plain_server_name;
960
AP_DECLARE(apr_port_t) ap_get_server_port(const request_rec *r)
964
(core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
966
switch (d->use_canonical_name) {
967
case USE_CANONICAL_NAME_OFF:
968
case USE_CANONICAL_NAME_DNS:
969
case USE_CANONICAL_NAME_UNSET:
970
if (d->use_canonical_phys_port == USE_CANONICAL_PHYS_PORT_ON)
971
port = r->parsed_uri.port_str ? r->parsed_uri.port :
972
r->connection->local_addr->port ? r->connection->local_addr->port :
973
r->server->port ? r->server->port :
975
else /* USE_CANONICAL_PHYS_PORT_OFF or USE_CANONICAL_PHYS_PORT_UNSET */
976
port = r->parsed_uri.port_str ? r->parsed_uri.port :
977
r->server->port ? r->server->port :
980
case USE_CANONICAL_NAME_ON:
981
/* With UseCanonicalName on (and in all versions prior to 1.3)
982
* Apache will use the hostname and port specified in the
983
* ServerName directive to construct a canonical name for the
984
* server. (If no port was specified in the ServerName
985
* directive, Apache uses the port supplied by the client if
986
* any is supplied, and finally the default port for the protocol
989
if (d->use_canonical_phys_port == USE_CANONICAL_PHYS_PORT_ON)
990
port = r->server->port ? r->server->port :
991
r->connection->local_addr->port ? r->connection->local_addr->port :
993
else /* USE_CANONICAL_PHYS_PORT_OFF or USE_CANONICAL_PHYS_PORT_UNSET */
994
port = r->server->port ? r->server->port :
998
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
999
"ap_get_server_port: Invalid UCN Option somehow");
1000
port = ap_default_port(r);
1007
AP_DECLARE(char *) ap_construct_url(apr_pool_t *p, const char *uri,
1010
unsigned port = ap_get_server_port(r);
1011
const char *host = get_server_name_for_url(r);
1013
if (ap_is_default_port(port, r)) {
1014
return apr_pstrcat(p, ap_http_scheme(r), "://", host, uri, NULL);
1017
return apr_psprintf(p, "%s://%s:%u%s", ap_http_scheme(r), host, port, uri);
1020
AP_DECLARE(apr_off_t) ap_get_limit_req_body(const request_rec *r)
1022
core_dir_config *d =
1023
(core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
1025
if (d->limit_req_body == AP_LIMIT_REQ_BODY_UNSET) {
1026
return AP_DEFAULT_LIMIT_REQ_BODY;
1029
return d->limit_req_body;
1033
/*****************************************************************
1035
* Commands... this module handles almost all of the NCSA httpd.conf
1036
* commands, but most of the old srm.conf is in the the modules.
1040
/* returns a parent if it matches the given directive */
1041
static const ap_directive_t * find_parent(const ap_directive_t *dirp,
1044
while (dirp->parent != NULL) {
1045
dirp = dirp->parent;
1047
/* ### it would be nice to have atom-ized directives */
1048
if (strcasecmp(dirp->directive, what) == 0)
1055
AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd,
1058
const char *gt = (cmd->cmd->name[0] == '<'
1059
&& cmd->cmd->name[strlen(cmd->cmd->name)-1] != '>')
1061
const ap_directive_t *found;
1063
if ((forbidden & NOT_IN_VIRTUALHOST) && cmd->server->is_virtual) {
1064
return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1065
" cannot occur within <VirtualHost> section", NULL);
1068
if ((forbidden & NOT_IN_LIMIT) && cmd->limited != -1) {
1069
return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1070
" cannot occur within <Limit> section", NULL);
1073
if ((forbidden & NOT_IN_DIR_LOC_FILE) == NOT_IN_DIR_LOC_FILE) {
1074
if (cmd->path != NULL) {
1075
return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1076
" cannot occur within <Directory/Location/Files> "
1079
if (cmd->cmd->req_override & EXEC_ON_READ) {
1080
/* EXEC_ON_READ must be NOT_IN_DIR_LOC_FILE, if not, it will
1081
* (deliberately) segfault below in the individual tests...
1087
if (((forbidden & NOT_IN_DIRECTORY)
1088
&& ((found = find_parent(cmd->directive, "<Directory"))
1089
|| (found = find_parent(cmd->directive, "<DirectoryMatch"))))
1090
|| ((forbidden & NOT_IN_LOCATION)
1091
&& ((found = find_parent(cmd->directive, "<Location"))
1092
|| (found = find_parent(cmd->directive, "<LocationMatch"))))
1093
|| ((forbidden & NOT_IN_FILES)
1094
&& ((found = find_parent(cmd->directive, "<Files"))
1095
|| (found = find_parent(cmd->directive, "<FilesMatch"))))) {
1096
return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1097
" cannot occur within ", found->directive,
1104
static const char *set_access_name(cmd_parms *cmd, void *dummy,
1107
void *sconf = cmd->server->module_config;
1108
core_server_config *conf = ap_get_module_config(sconf, &core_module);
1110
const char *err = ap_check_cmd_context(cmd,
1111
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1116
conf->access_name = apr_pstrdup(cmd->pool, arg);
1121
static const char *set_gprof_dir(cmd_parms *cmd, void *dummy, const char *arg)
1123
void *sconf = cmd->server->module_config;
1124
core_server_config *conf = ap_get_module_config(sconf, &core_module);
1126
const char *err = ap_check_cmd_context(cmd,
1127
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1132
conf->gprof_dir = apr_pstrdup(cmd->pool, arg);
1137
static const char *set_add_default_charset(cmd_parms *cmd,
1138
void *d_, const char *arg)
1140
core_dir_config *d = d_;
1142
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1147
if (!strcasecmp(arg, "Off")) {
1148
d->add_default_charset = ADD_DEFAULT_CHARSET_OFF;
1150
else if (!strcasecmp(arg, "On")) {
1151
d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1152
d->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
1155
d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1156
d->add_default_charset_name = arg;
1162
static const char *set_document_root(cmd_parms *cmd, void *dummy,
1165
void *sconf = cmd->server->module_config;
1166
core_server_config *conf = ap_get_module_config(sconf, &core_module);
1168
const char *err = ap_check_cmd_context(cmd,
1169
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1174
/* Make it absolute, relative to ServerRoot */
1175
arg = ap_server_root_relative(cmd->pool, arg);
1177
/* TODO: ap_configtestonly && ap_docrootcheck && */
1178
if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg,
1179
APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS
1180
|| !ap_is_directory(cmd->pool, arg)) {
1181
if (cmd->server->is_virtual) {
1182
ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0,
1184
"Warning: DocumentRoot [%s] does not exist",
1186
conf->ap_document_root = arg;
1189
return "DocumentRoot must be a directory";
1195
AP_DECLARE(void) ap_custom_response(request_rec *r, int status,
1198
core_request_config *conf =
1199
ap_get_module_config(r->request_config, &core_module);
1202
if (conf->response_code_strings == NULL) {
1203
conf->response_code_strings =
1204
apr_pcalloc(r->pool,
1205
sizeof(*conf->response_code_strings) * RESPONSE_CODES);
1208
idx = ap_index_of_response(status);
1210
conf->response_code_strings[idx] =
1211
((ap_is_url(string) || (*string == '/')) && (*string != '"')) ?
1212
apr_pstrdup(r->pool, string) : apr_pstrcat(r->pool, "\"", string, NULL);
1215
static const char *set_error_document(cmd_parms *cmd, void *conf_,
1216
const char *errno_str, const char *msg)
1218
core_dir_config *conf = conf_;
1219
int error_number, index_number, idx500;
1220
enum { MSG, LOCAL_PATH, REMOTE_PATH } what = MSG;
1222
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1227
/* 1st parameter should be a 3 digit number, which we recognize;
1228
* convert it into an array index
1230
error_number = atoi(errno_str);
1231
idx500 = ap_index_of_response(HTTP_INTERNAL_SERVER_ERROR);
1233
if (error_number == HTTP_INTERNAL_SERVER_ERROR) {
1234
index_number = idx500;
1236
else if ((index_number = ap_index_of_response(error_number)) == idx500) {
1237
return apr_pstrcat(cmd->pool, "Unsupported HTTP response code ",
1241
/* Heuristic to determine second argument. */
1242
if (ap_strchr_c(msg,' '))
1244
else if (msg[0] == '/')
1246
else if (ap_is_url(msg))
1251
/* The entry should be ignored if it is a full URL for a 401 error */
1253
if (error_number == 401 && what == REMOTE_PATH) {
1254
ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, cmd->server,
1255
"cannot use a full URL in a 401 ErrorDocument "
1256
"directive --- ignoring!");
1258
else { /* Store it... */
1259
if (conf->response_code_strings == NULL) {
1260
conf->response_code_strings =
1261
apr_pcalloc(cmd->pool,
1262
sizeof(*conf->response_code_strings) *
1266
if (strcmp(msg, "default") == 0) {
1267
/* special case: ErrorDocument 404 default restores the
1268
* canned server error response
1270
conf->response_code_strings[index_number] = &errordocument_default;
1273
/* hack. Prefix a " if it is a msg; as that is what
1274
* http_protocol.c relies on to distinguish between
1275
* a msg and a (local) path.
1277
conf->response_code_strings[index_number] = (what == MSG) ?
1278
apr_pstrcat(cmd->pool, "\"",msg,NULL) :
1279
apr_pstrdup(cmd->pool, msg);
1286
static const char *set_allow_opts(cmd_parms *cmd, allow_options_t *opts,
1289
allow_options_t opt;
1292
char *w, *p = (char *) l;
1295
while ((w = apr_strtok(p, ",", &tok_state)) != NULL) {
1303
if (!strcasecmp(w, "Indexes")) {
1306
else if (!strcasecmp(w, "Includes")) {
1309
else if (!strcasecmp(w, "IncludesNOEXEC")) {
1310
opt = (OPT_INCLUDES | OPT_INCNOEXEC);
1312
else if (!strcasecmp(w, "FollowSymLinks")) {
1313
opt = OPT_SYM_LINKS;
1315
else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1316
opt = OPT_SYM_OWNER;
1318
else if (!strcasecmp(w, "ExecCGI")) {
1321
else if (!strcasecmp(w, "MultiViews")) {
1324
else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1325
opt = OPT_MULTI|OPT_EXECCGI;
1327
else if (!strcasecmp(w, "None")) {
1330
else if (!strcasecmp(w, "All")) {
1334
return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1340
(*opts) &= (~OPT_UNSET);
1345
static const char *set_override(cmd_parms *cmd, void *d_, const char *l)
1347
core_dir_config *d = d_;
1351
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1356
/* Throw a warning if we're in <Location> or <Files> */
1357
if (ap_check_cmd_context(cmd, NOT_IN_LOCATION | NOT_IN_FILES)) {
1358
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
1359
"Useless use of AllowOverride in line %d.",
1360
cmd->directive->line_num);
1363
d->override = OR_NONE;
1365
w = ap_getword_conf(cmd->pool, &l);
1373
if (!strcasecmp(w, "Limit")) {
1374
d->override |= OR_LIMIT;
1376
else if (!strcasecmp(k, "Options")) {
1377
d->override |= OR_OPTIONS;
1379
set_allow_opts(cmd, &(d->override_opts), v);
1381
d->override_opts = OPT_ALL;
1383
else if (!strcasecmp(w, "FileInfo")) {
1384
d->override |= OR_FILEINFO;
1386
else if (!strcasecmp(w, "AuthConfig")) {
1387
d->override |= OR_AUTHCFG;
1389
else if (!strcasecmp(w, "Indexes")) {
1390
d->override |= OR_INDEXES;
1392
else if (!strcasecmp(w, "None")) {
1393
d->override = OR_NONE;
1395
else if (!strcasecmp(w, "All")) {
1396
d->override = OR_ALL;
1399
return apr_pstrcat(cmd->pool, "Illegal override option ", w, NULL);
1402
d->override &= ~OR_UNSET;
1408
static const char *set_options(cmd_parms *cmd, void *d_, const char *l)
1410
core_dir_config *d = d_;
1411
allow_options_t opt;
1416
char *w = ap_getword_conf(cmd->pool, &l);
1419
if (*w == '+' || *w == '-') {
1427
if (!strcasecmp(w, "Indexes")) {
1430
else if (!strcasecmp(w, "Includes")) {
1433
else if (!strcasecmp(w, "IncludesNOEXEC")) {
1434
opt = (OPT_INCLUDES | OPT_INCNOEXEC);
1436
else if (!strcasecmp(w, "FollowSymLinks")) {
1437
opt = OPT_SYM_LINKS;
1439
else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1440
opt = OPT_SYM_OWNER;
1442
else if (!strcasecmp(w, "ExecCGI")) {
1445
else if (!strcasecmp(w, "MultiViews")) {
1448
else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1449
opt = OPT_MULTI|OPT_EXECCGI;
1451
else if (!strcasecmp(w, "None")) {
1454
else if (!strcasecmp(w, "All")) {
1458
return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1461
if (!(cmd->override_opts & opt) && opt != OPT_NONE) {
1462
return apr_pstrcat(cmd->pool, "Option ", w, " not allowed here", NULL);
1464
else if (action == '-') {
1465
/* we ensure the invariant (d->opts_add & d->opts_remove) == 0 */
1466
d->opts_remove |= opt;
1467
d->opts_add &= ~opt;
1470
else if (action == '+') {
1472
d->opts_remove &= ~opt;
1484
* Note what data should be used when forming file ETag values.
1485
* It would be nicer to do this as an ITERATE, but then we couldn't
1486
* remember the +/- state properly.
1488
static const char *set_etag_bits(cmd_parms *cmd, void *mconfig,
1491
core_dir_config *cfg;
1492
etag_components_t bit;
1500
cfg = (core_dir_config *)mconfig;
1505
while (args[0] != '\0') {
1509
token = ap_getword_conf(cmd->pool, &args);
1510
if ((*token == '+') || (*token == '-')) {
1516
* The occurrence of an absolute setting wipes
1517
* out any previous relative ones. The first such
1518
* occurrence forgets any inherited ones, too.
1521
cfg->etag_bits = ETAG_UNSET;
1522
cfg->etag_add = ETAG_UNSET;
1523
cfg->etag_remove = ETAG_UNSET;
1528
if (strcasecmp(token, "None") == 0) {
1529
if (action != '*') {
1533
cfg->etag_bits = bit = ETAG_NONE;
1537
else if (strcasecmp(token, "All") == 0) {
1538
if (action != '*') {
1543
cfg->etag_bits = bit = ETAG_ALL;
1546
else if (strcasecmp(token, "Size") == 0) {
1549
else if ((strcasecmp(token, "LMTime") == 0)
1550
|| (strcasecmp(token, "MTime") == 0)
1551
|| (strcasecmp(token, "LastModified") == 0)) {
1554
else if (strcasecmp(token, "INode") == 0) {
1558
return apr_pstrcat(cmd->pool, "Unknown keyword '",
1559
token, "' for ", cmd->cmd->name,
1560
" directive", NULL);
1564
return apr_pstrcat(cmd->pool, cmd->cmd->name, " keyword '",
1565
token, "' cannot be used with '+' or '-'",
1569
if (action == '+') {
1571
* Make sure it's in the 'add' list and absent from the
1574
cfg->etag_add |= bit;
1575
cfg->etag_remove &= (~ bit);
1577
else if (action == '-') {
1578
cfg->etag_remove |= bit;
1579
cfg->etag_add &= (~ bit);
1583
* Non-relative values wipe out any + or - values
1584
* accumulated so far.
1586
cfg->etag_bits |= bit;
1587
cfg->etag_add = ETAG_UNSET;
1588
cfg->etag_remove = ETAG_UNSET;
1594
* Any setting at all will clear the 'None' and 'Unset' bits.
1597
if (cfg->etag_add != ETAG_UNSET) {
1598
cfg->etag_add &= (~ ETAG_UNSET);
1601
if (cfg->etag_remove != ETAG_UNSET) {
1602
cfg->etag_remove &= (~ ETAG_UNSET);
1606
cfg->etag_bits &= (~ ETAG_UNSET);
1608
if ((cfg->etag_bits & ETAG_NONE) != ETAG_NONE) {
1609
cfg->etag_bits &= (~ ETAG_NONE);
1616
static const char *set_enable_mmap(cmd_parms *cmd, void *d_,
1619
core_dir_config *d = d_;
1620
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1626
if (strcasecmp(arg, "on") == 0) {
1627
d->enable_mmap = ENABLE_MMAP_ON;
1629
else if (strcasecmp(arg, "off") == 0) {
1630
d->enable_mmap = ENABLE_MMAP_OFF;
1633
return "parameter must be 'on' or 'off'";
1639
static const char *set_enable_sendfile(cmd_parms *cmd, void *d_,
1642
core_dir_config *d = d_;
1643
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1649
if (strcasecmp(arg, "on") == 0) {
1650
d->enable_sendfile = ENABLE_SENDFILE_ON;
1652
else if (strcasecmp(arg, "off") == 0) {
1653
d->enable_sendfile = ENABLE_SENDFILE_OFF;
1656
return "parameter must be 'on' or 'off'";
1662
static const char *satisfy(cmd_parms *cmd, void *c_, const char *arg)
1664
core_dir_config *c = c_;
1665
int satisfy = SATISFY_NOSPEC;
1668
if (!strcasecmp(arg, "all")) {
1669
satisfy = SATISFY_ALL;
1671
else if (!strcasecmp(arg, "any")) {
1672
satisfy = SATISFY_ANY;
1675
return "Satisfy either 'any' or 'all'.";
1678
for (i = 0; i < METHODS; ++i) {
1679
if (cmd->limited & (AP_METHOD_BIT << i)) {
1680
c->satisfy[i] = satisfy;
1687
static const char *require(cmd_parms *cmd, void *c_, const char *arg)
1690
core_dir_config *c = c_;
1692
if (!c->ap_requires) {
1693
c->ap_requires = apr_array_make(cmd->pool, 2, sizeof(require_line));
1696
r = (require_line *)apr_array_push(c->ap_requires);
1697
r->requirement = apr_pstrdup(cmd->pool, arg);
1698
r->method_mask = cmd->limited;
1704
* Report a missing-'>' syntax error.
1706
static char *unclosed_directive(cmd_parms *cmd)
1708
return apr_pstrcat(cmd->pool, cmd->cmd->name,
1709
"> directive missing closing '>'", NULL);
1713
* Report a missing args in '<Foo >' syntax error.
1715
static char *missing_container_arg(cmd_parms *cmd)
1717
return apr_pstrcat(cmd->pool, cmd->cmd->name,
1718
"> directive requires additional arguments", NULL);
1721
AP_CORE_DECLARE_NONSTD(const char *) ap_limit_section(cmd_parms *cmd,
1725
const char *endp = ap_strrchr_c(arg, '>');
1726
const char *limited_methods;
1727
void *tog = cmd->cmd->cmd_data;
1728
apr_int64_t limited = 0;
1731
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1737
return unclosed_directive(cmd);
1740
limited_methods = apr_pstrndup(cmd->pool, arg, endp - arg);
1742
if (!limited_methods[0]) {
1743
return missing_container_arg(cmd);
1746
while (limited_methods[0]) {
1747
char *method = ap_getword_conf(cmd->pool, &limited_methods);
1750
/* check for builtin or module registered method number */
1751
methnum = ap_method_number_of(method);
1753
if (methnum == M_TRACE && !tog) {
1754
return "TRACE cannot be controlled by <Limit>, see TraceEnable";
1756
else if (methnum == M_INVALID) {
1757
/* method has not been registered yet, but resorce restriction
1758
* is always checked before method handling, so register it.
1760
methnum = ap_method_register(cmd->pool, method);
1763
limited |= (AP_METHOD_BIT << methnum);
1766
/* Killing two features with one function,
1767
* if (tog == NULL) <Limit>, else <LimitExcept>
1769
cmd->limited = tog ? ~limited : limited;
1771
errmsg = ap_walk_config(cmd->directive->first_child, cmd, cmd->context);
1778
/* XXX: Bogus - need to do this differently (at least OS2/Netware suffer
1779
* the same problem!!!
1780
* We use this in <DirectoryMatch> and <FilesMatch>, to ensure that
1781
* people don't get bitten by wrong-cased regex matches
1785
#define USE_ICASE AP_REG_ICASE
1790
static const char *dirsection(cmd_parms *cmd, void *mconfig, const char *arg)
1793
const char *endp = ap_strrchr_c(arg, '>');
1794
int old_overrides = cmd->override;
1795
char *old_path = cmd->path;
1796
core_dir_config *conf;
1797
ap_conf_vector_t *new_dir_conf = ap_create_per_dir_config(cmd->pool);
1798
ap_regex_t *r = NULL;
1799
const command_rec *thiscmd = cmd->cmd;
1801
const char *err = ap_check_cmd_context(cmd,
1802
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1808
return unclosed_directive(cmd);
1811
arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1814
return missing_container_arg(cmd);
1818
if (thiscmd->cmd_data)
1819
return "<DirectoryMatch > block must specify a path";
1821
return "<Directory > block must specify a path";
1824
cmd->path = ap_getword_conf(cmd->pool, &arg);
1825
cmd->override = OR_ALL|ACCESS_CONF;
1827
if (!strcmp(cmd->path, "~")) {
1828
cmd->path = ap_getword_conf(cmd->pool, &arg);
1830
return "<Directory ~ > block must specify a path";
1831
r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
1833
return "Regex could not be compiled";
1836
else if (thiscmd->cmd_data) { /* <DirectoryMatch> */
1837
r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
1839
return "Regex could not be compiled";
1842
else if (!strcmp(cmd->path, "/") == 0)
1847
* Ensure that the pathname is canonical, and append the trailing /
1849
apr_status_t rv = apr_filepath_merge(&newpath, NULL, cmd->path,
1850
APR_FILEPATH_TRUENAME, cmd->pool);
1851
if (rv != APR_SUCCESS && rv != APR_EPATHWILD) {
1852
return apr_pstrcat(cmd->pool, "<Directory \"", cmd->path,
1853
"\"> path is invalid.", NULL);
1856
cmd->path = newpath;
1857
if (cmd->path[strlen(cmd->path) - 1] != '/')
1858
cmd->path = apr_pstrcat(cmd->pool, cmd->path, "/", NULL);
1861
/* initialize our config and fetch it */
1862
conf = ap_set_config_vectors(cmd->server, new_dir_conf, cmd->path,
1863
&core_module, cmd->pool);
1865
errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_dir_conf);
1870
conf->d = cmd->path;
1871
conf->d_is_fnmatch = (apr_fnmatch_test(conf->d) != 0);
1873
/* Make this explicit - the "/" root has 0 elements, that is, we
1874
* will always merge it, and it will always sort and merge first.
1875
* All others are sorted and tested by the number of slashes.
1877
if (strcmp(conf->d, "/") == 0)
1878
conf->d_components = 0;
1880
conf->d_components = ap_count_dirs(conf->d);
1882
ap_add_per_dir_conf(cmd->server, new_dir_conf);
1885
return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1886
"> arguments not (yet) supported.", NULL);
1889
cmd->path = old_path;
1890
cmd->override = old_overrides;
1895
static const char *urlsection(cmd_parms *cmd, void *mconfig, const char *arg)
1898
const char *endp = ap_strrchr_c(arg, '>');
1899
int old_overrides = cmd->override;
1900
char *old_path = cmd->path;
1901
core_dir_config *conf;
1902
ap_regex_t *r = NULL;
1903
const command_rec *thiscmd = cmd->cmd;
1904
ap_conf_vector_t *new_url_conf = ap_create_per_dir_config(cmd->pool);
1905
const char *err = ap_check_cmd_context(cmd,
1906
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1912
return unclosed_directive(cmd);
1915
arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1918
return missing_container_arg(cmd);
1921
cmd->path = ap_getword_conf(cmd->pool, &arg);
1922
cmd->override = OR_ALL|ACCESS_CONF;
1924
if (thiscmd->cmd_data) { /* <LocationMatch> */
1925
r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED);
1927
return "Regex could not be compiled";
1930
else if (!strcmp(cmd->path, "~")) {
1931
cmd->path = ap_getword_conf(cmd->pool, &arg);
1932
r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED);
1934
return "Regex could not be compiled";
1938
/* initialize our config and fetch it */
1939
conf = ap_set_config_vectors(cmd->server, new_url_conf, cmd->path,
1940
&core_module, cmd->pool);
1942
errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_url_conf);
1946
conf->d = apr_pstrdup(cmd->pool, cmd->path); /* No mangling, please */
1947
conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
1950
ap_add_per_url_conf(cmd->server, new_url_conf);
1953
return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1954
"> arguments not (yet) supported.", NULL);
1957
cmd->path = old_path;
1958
cmd->override = old_overrides;
1963
static const char *filesection(cmd_parms *cmd, void *mconfig, const char *arg)
1966
const char *endp = ap_strrchr_c(arg, '>');
1967
int old_overrides = cmd->override;
1968
char *old_path = cmd->path;
1969
core_dir_config *conf;
1970
ap_regex_t *r = NULL;
1971
const command_rec *thiscmd = cmd->cmd;
1972
core_dir_config *c = mconfig;
1973
ap_conf_vector_t *new_file_conf = ap_create_per_dir_config(cmd->pool);
1974
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT|NOT_IN_LOCATION);
1981
return unclosed_directive(cmd);
1984
arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1987
return missing_container_arg(cmd);
1990
cmd->path = ap_getword_conf(cmd->pool, &arg);
1991
/* Only if not an .htaccess file */
1993
cmd->override = OR_ALL|ACCESS_CONF;
1996
if (thiscmd->cmd_data) { /* <FilesMatch> */
1997
r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
1999
return "Regex could not be compiled";
2002
else if (!strcmp(cmd->path, "~")) {
2003
cmd->path = ap_getword_conf(cmd->pool, &arg);
2004
r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2006
return "Regex could not be compiled";
2011
/* Ensure that the pathname is canonical, but we
2012
* can't test the case/aliases without a fixed path */
2013
if (apr_filepath_merge(&newpath, "", cmd->path,
2014
0, cmd->pool) != APR_SUCCESS)
2015
return apr_pstrcat(cmd->pool, "<Files \"", cmd->path,
2016
"\"> is invalid.", NULL);
2017
cmd->path = newpath;
2020
/* initialize our config and fetch it */
2021
conf = ap_set_config_vectors(cmd->server, new_file_conf, cmd->path,
2022
&core_module, cmd->pool);
2024
errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_file_conf);
2028
conf->d = cmd->path;
2029
conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
2032
ap_add_file_conf(c, new_file_conf);
2035
return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2036
"> arguments not (yet) supported.", NULL);
2039
cmd->path = old_path;
2040
cmd->override = old_overrides;
2045
static const char *start_ifmod(cmd_parms *cmd, void *mconfig, const char *arg)
2047
const char *endp = ap_strrchr_c(arg, '>');
2048
int not = (arg[0] == '!');
2052
return unclosed_directive(cmd);
2055
arg = apr_pstrndup(cmd->pool, arg, endp - arg);
2062
return missing_container_arg(cmd);
2065
found = ap_find_linked_module(arg);
2067
/* search prelinked stuff */
2069
ap_module_symbol_t *current = ap_prelinked_module_symbols;
2071
for (; current->name; ++current) {
2072
if (!strcmp(current->name, arg)) {
2073
found = current->modp;
2079
/* search dynamic stuff */
2081
APR_OPTIONAL_FN_TYPE(ap_find_loaded_module_symbol) *check_symbol =
2082
APR_RETRIEVE_OPTIONAL_FN(ap_find_loaded_module_symbol);
2085
found = check_symbol(cmd->server, arg);
2089
if ((!not && found) || (not && !found)) {
2090
ap_directive_t *parent = NULL;
2091
ap_directive_t *current = NULL;
2094
retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
2095
¤t, &parent, "<IfModule");
2096
*(ap_directive_t **)mconfig = current;
2100
*(ap_directive_t **)mconfig = NULL;
2101
return ap_soak_end_container(cmd, "<IfModule");
2105
AP_DECLARE(int) ap_exists_config_define(const char *name)
2110
defines = (char **)ap_server_config_defines->elts;
2111
for (i = 0; i < ap_server_config_defines->nelts; i++) {
2112
if (strcmp(defines[i], name) == 0) {
2120
static const char *start_ifdefine(cmd_parms *cmd, void *dummy, const char *arg)
2126
endp = ap_strrchr_c(arg, '>');
2128
return unclosed_directive(cmd);
2131
arg = apr_pstrndup(cmd->pool, arg, endp - arg);
2133
if (arg[0] == '!') {
2139
return missing_container_arg(cmd);
2142
defined = ap_exists_config_define(arg);
2143
if ((!not && defined) || (not && !defined)) {
2144
ap_directive_t *parent = NULL;
2145
ap_directive_t *current = NULL;
2148
retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
2149
¤t, &parent, "<IfDefine");
2150
*(ap_directive_t **)dummy = current;
2154
*(ap_directive_t **)dummy = NULL;
2155
return ap_soak_end_container(cmd, "<IfDefine");
2159
/* httpd.conf commands... beginning with the <VirtualHost> business */
2161
static const char *virtualhost_section(cmd_parms *cmd, void *dummy,
2164
server_rec *main_server = cmd->server, *s;
2166
const char *endp = ap_strrchr_c(arg, '>');
2167
apr_pool_t *p = cmd->pool;
2169
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2175
return unclosed_directive(cmd);
2178
arg = apr_pstrndup(cmd->pool, arg, endp - arg);
2181
return missing_container_arg(cmd);
2184
/* FIXME: There's another feature waiting to happen here -- since you
2185
can now put multiple addresses/names on a single <VirtualHost>
2186
you might want to use it to group common definitions and then
2187
define other "subhosts" with their individual differences. But
2188
personally I'd rather just do it with a macro preprocessor. -djg */
2189
if (main_server->is_virtual) {
2190
return "<VirtualHost> doesn't nest!";
2193
errmsg = ap_init_virtual_host(p, arg, main_server, &s);
2198
s->next = main_server->next;
2199
main_server->next = s;
2201
s->defn_name = cmd->directive->filename;
2202
s->defn_line_number = cmd->directive->line_num;
2206
errmsg = ap_walk_config(cmd->directive->first_child, cmd,
2207
s->lookup_defaults);
2209
cmd->server = main_server;
2214
static const char *set_server_alias(cmd_parms *cmd, void *dummy,
2217
if (!cmd->server->names) {
2218
return "ServerAlias only used in <VirtualHost>";
2222
char **item, *name = ap_getword_conf(cmd->pool, &arg);
2224
if (ap_is_matchexp(name)) {
2225
item = (char **)apr_array_push(cmd->server->wild_names);
2228
item = (char **)apr_array_push(cmd->server->names);
2237
static const char *set_accf_map(cmd_parms *cmd, void *dummy,
2238
const char *iproto, const char* iaccf)
2240
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2241
core_server_config *conf = ap_get_module_config(cmd->server->module_config,
2249
proto = apr_pstrdup(cmd->pool, iproto);
2250
ap_str_tolower(proto);
2251
accf = apr_pstrdup(cmd->pool, iaccf);
2252
ap_str_tolower(accf);
2253
apr_table_set(conf->accf_map, proto, accf);
2258
AP_DECLARE(const char*) ap_get_server_protocol(server_rec* s)
2260
core_server_config *conf = ap_get_module_config(s->module_config,
2262
return conf->protocol;
2265
AP_DECLARE(void) ap_set_server_protocol(server_rec* s, const char* proto)
2267
core_server_config *conf = ap_get_module_config(s->module_config,
2269
conf->protocol = proto;
2272
static const char *set_protocol(cmd_parms *cmd, void *dummy,
2275
const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2276
core_server_config *conf = ap_get_module_config(cmd->server->module_config,
2284
proto = apr_pstrdup(cmd->pool, arg);
2285
ap_str_tolower(proto);
2286
conf->protocol = proto;
2291
static const char *set_server_string_slot(cmd_parms *cmd, void *dummy,
2294
/* This one's pretty generic... */
2296
int offset = (int)(long)cmd->info;
2297
char *struct_ptr = (char *)cmd->server;
2299
const char *err = ap_check_cmd_context(cmd,
2300
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2305
*(const char **)(struct_ptr + offset) = arg;
2310
* The ServerName directive takes one argument with format
2311
* [scheme://]fully-qualified-domain-name[:port], for instance
2312
* ServerName www.example.com
2313
* ServerName www.example.com:80
2314
* ServerName https://www.example.com:443
2317
static const char *server_hostname_port(cmd_parms *cmd, void *dummy, const char *arg)
2319
const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2320
const char *portstr, *part;
2328
part = ap_strstr_c(arg, "://");
2331
scheme = apr_pstrmemdup(cmd->pool, arg, part - arg);
2332
ap_str_tolower(scheme);
2333
cmd->server->server_scheme = scheme;
2339
portstr = ap_strchr_c(part, ':');
2341
cmd->server->server_hostname = apr_pstrmemdup(cmd->pool, part,
2344
port = atoi(portstr);
2345
if (port <= 0 || port >= 65536) { /* 65536 == 1<<16 */
2346
return apr_pstrcat(cmd->temp_pool, "The port number \"", arg,
2347
"\" is outside the appropriate range "
2348
"(i.e., 1..65535).", NULL);
2352
cmd->server->server_hostname = apr_pstrdup(cmd->pool, part);
2356
cmd->server->port = port;
2360
static const char *set_signature_flag(cmd_parms *cmd, void *d_,
2363
core_dir_config *d = d_;
2364
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2370
if (strcasecmp(arg, "On") == 0) {
2371
d->server_signature = srv_sig_on;
2373
else if (strcasecmp(arg, "Off") == 0) {
2374
d->server_signature = srv_sig_off;
2376
else if (strcasecmp(arg, "EMail") == 0) {
2377
d->server_signature = srv_sig_withmail;
2380
return "ServerSignature: use one of: off | on | email";
2386
static const char *set_server_root(cmd_parms *cmd, void *dummy,
2389
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2395
if ((apr_filepath_merge((char**)&ap_server_root, NULL, arg,
2396
APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS)
2397
|| !ap_is_directory(cmd->pool, ap_server_root)) {
2398
return "ServerRoot must be a valid directory";
2404
static const char *set_timeout(cmd_parms *cmd, void *dummy, const char *arg)
2406
const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2412
cmd->server->timeout = apr_time_from_sec(atoi(arg));
2416
static const char *set_allow2f(cmd_parms *cmd, void *d_, int arg)
2418
core_dir_config *d = d_;
2419
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2425
d->allow_encoded_slashes = arg != 0;
2429
static const char *set_hostname_lookups(cmd_parms *cmd, void *d_,
2432
core_dir_config *d = d_;
2433
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2439
if (!strcasecmp(arg, "on")) {
2440
d->hostname_lookups = HOSTNAME_LOOKUP_ON;
2442
else if (!strcasecmp(arg, "off")) {
2443
d->hostname_lookups = HOSTNAME_LOOKUP_OFF;
2445
else if (!strcasecmp(arg, "double")) {
2446
d->hostname_lookups = HOSTNAME_LOOKUP_DOUBLE;
2449
return "parameter must be 'on', 'off', or 'double'";
2455
static const char *set_serverpath(cmd_parms *cmd, void *dummy,
2458
const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2464
cmd->server->path = arg;
2465
cmd->server->pathlen = (int)strlen(arg);
2469
static const char *set_content_md5(cmd_parms *cmd, void *d_, int arg)
2471
core_dir_config *d = d_;
2472
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2478
d->content_md5 = arg != 0;
2482
static const char *set_accept_path_info(cmd_parms *cmd, void *d_, const char *arg)
2484
core_dir_config *d = d_;
2486
if (strcasecmp(arg, "on") == 0) {
2487
d->accept_path_info = AP_REQ_ACCEPT_PATH_INFO;
2489
else if (strcasecmp(arg, "off") == 0) {
2490
d->accept_path_info = AP_REQ_REJECT_PATH_INFO;
2492
else if (strcasecmp(arg, "default") == 0) {
2493
d->accept_path_info = AP_REQ_DEFAULT_PATH_INFO;
2496
return "AcceptPathInfo must be set to on, off or default";
2502
static const char *set_use_canonical_name(cmd_parms *cmd, void *d_,
2505
core_dir_config *d = d_;
2506
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2512
if (strcasecmp(arg, "on") == 0) {
2513
d->use_canonical_name = USE_CANONICAL_NAME_ON;
2515
else if (strcasecmp(arg, "off") == 0) {
2516
d->use_canonical_name = USE_CANONICAL_NAME_OFF;
2518
else if (strcasecmp(arg, "dns") == 0) {
2519
d->use_canonical_name = USE_CANONICAL_NAME_DNS;
2522
return "parameter must be 'on', 'off', or 'dns'";
2528
static const char *set_use_canonical_phys_port(cmd_parms *cmd, void *d_,
2531
core_dir_config *d = d_;
2532
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2538
if (strcasecmp(arg, "on") == 0) {
2539
d->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_ON;
2541
else if (strcasecmp(arg, "off") == 0) {
2542
d->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_OFF;
2545
return "parameter must be 'on' or 'off'";
2552
static const char *include_config (cmd_parms *cmd, void *dummy,
2555
ap_directive_t *conftree = NULL;
2556
const char* conffile, *error;
2557
unsigned *recursion;
2560
apr_pool_userdata_get(&data, "ap_include_sentinel", cmd->pool);
2565
data = recursion = apr_palloc(cmd->pool, sizeof(*recursion));
2567
apr_pool_userdata_setn(data, "ap_include_sentinel", NULL, cmd->pool);
2570
if (++*recursion > AP_MAX_INCLUDE_DEPTH) {
2572
return apr_psprintf(cmd->pool, "Exceeded maximum include depth of %u. "
2573
"You have probably a recursion somewhere.",
2574
AP_MAX_INCLUDE_DEPTH);
2577
conffile = ap_server_root_relative(cmd->pool, name);
2580
return apr_pstrcat(cmd->pool, "Invalid Include path ",
2584
error = ap_process_resource_config(cmd->server, conffile,
2585
&conftree, cmd->pool, cmd->temp_pool);
2591
*(ap_directive_t **)dummy = conftree;
2593
/* recursion level done */
2601
static const char *set_loglevel(cmd_parms *cmd, void *dummy, const char *arg)
2605
const char *err = ap_check_cmd_context(cmd,
2606
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2611
if ((str = ap_getword_conf(cmd->pool, &arg))) {
2612
if (!strcasecmp(str, "emerg")) {
2613
cmd->server->loglevel = APLOG_EMERG;
2615
else if (!strcasecmp(str, "alert")) {
2616
cmd->server->loglevel = APLOG_ALERT;
2618
else if (!strcasecmp(str, "crit")) {
2619
cmd->server->loglevel = APLOG_CRIT;
2621
else if (!strcasecmp(str, "error")) {
2622
cmd->server->loglevel = APLOG_ERR;
2624
else if (!strcasecmp(str, "warn")) {
2625
cmd->server->loglevel = APLOG_WARNING;
2627
else if (!strcasecmp(str, "notice")) {
2628
cmd->server->loglevel = APLOG_NOTICE;
2630
else if (!strcasecmp(str, "info")) {
2631
cmd->server->loglevel = APLOG_INFO;
2633
else if (!strcasecmp(str, "debug")) {
2634
cmd->server->loglevel = APLOG_DEBUG;
2637
return "LogLevel requires level keyword: one of "
2638
"emerg/alert/crit/error/warn/notice/info/debug";
2642
return "LogLevel requires level keyword";
2648
AP_DECLARE(const char *) ap_psignature(const char *prefix, request_rec *r)
2651
core_dir_config *conf;
2653
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
2655
if ((conf->server_signature == srv_sig_off)
2656
|| (conf->server_signature == srv_sig_unset)) {
2660
apr_snprintf(sport, sizeof sport, "%u", (unsigned) ap_get_server_port(r));
2662
if (conf->server_signature == srv_sig_withmail) {
2663
return apr_pstrcat(r->pool, prefix, "<address>",
2664
ap_get_server_version(),
2665
" Server at <a href=\"",
2666
ap_is_url(r->server->server_admin) ? "" : "mailto:",
2667
ap_escape_html(r->pool, r->server->server_admin),
2669
ap_escape_html(r->pool, ap_get_server_name(r)),
2670
"</a> Port ", sport,
2671
"</address>\n", NULL);
2674
return apr_pstrcat(r->pool, prefix, "<address>", ap_get_server_version(),
2676
ap_escape_html(r->pool, ap_get_server_name(r)),
2678
"</address>\n", NULL);
2682
* Load an authorisation realm into our location configuration, applying the
2683
* usual rules that apply to realms.
2685
static const char *set_authname(cmd_parms *cmd, void *mconfig,
2688
core_dir_config *aconfig = (core_dir_config *)mconfig;
2690
aconfig->ap_auth_name = ap_escape_quotes(cmd->pool, word1);
2695
* Handle a request to include the server's OS platform in the Server
2696
* response header field (the ServerTokens directive). Unfortunately
2697
* this requires a new global in order to communicate the setting back to
2698
* http_main so it can insert the information in the right place in the
2702
static char *server_version = NULL;
2703
static int version_locked = 0;
2705
enum server_token_type {
2706
SrvTk_MAJOR, /* eg: Apache/2 */
2707
SrvTk_MINOR, /* eg. Apache/2.0 */
2708
SrvTk_MINIMAL, /* eg: Apache/2.0.41 */
2709
SrvTk_OS, /* eg: Apache/2.0.41 (UNIX) */
2710
SrvTk_FULL, /* eg: Apache/2.0.41 (UNIX) PHP/4.2.2 FooBar/1.2b */
2711
SrvTk_PRODUCT_ONLY /* eg: Apache */
2713
static enum server_token_type ap_server_tokens = SrvTk_FULL;
2715
static apr_status_t reset_version(void *dummy)
2718
ap_server_tokens = SrvTk_FULL;
2719
server_version = NULL;
2723
AP_DECLARE(void) ap_get_server_revision(ap_version_t *version)
2725
version->major = AP_SERVER_MAJORVERSION_NUMBER;
2726
version->minor = AP_SERVER_MINORVERSION_NUMBER;
2727
version->patch = AP_SERVER_PATCHLEVEL_NUMBER;
2728
version->add_string = AP_SERVER_ADD_STRING;
2731
AP_DECLARE(const char *) ap_get_server_version(void)
2733
return (server_version ? server_version : AP_SERVER_BASEVERSION);
2736
AP_DECLARE(void) ap_add_version_component(apr_pool_t *pconf, const char *component)
2738
if (! version_locked) {
2740
* If the version string is null, register our cleanup to reset the
2741
* pointer on pool destruction. We also know that, if NULL,
2742
* we are adding the original SERVER_BASEVERSION string.
2744
if (server_version == NULL) {
2745
apr_pool_cleanup_register(pconf, NULL, reset_version,
2746
apr_pool_cleanup_null);
2747
server_version = apr_pstrdup(pconf, component);
2751
* Tack the given component identifier to the end of
2752
* the existing string.
2754
server_version = apr_pstrcat(pconf, server_version, " ",
2761
* This routine adds the real server base identity to the version string,
2762
* and then locks out changes until the next reconfig.
2764
static void ap_set_version(apr_pool_t *pconf)
2766
if (ap_server_tokens == SrvTk_PRODUCT_ONLY) {
2767
ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT);
2769
else if (ap_server_tokens == SrvTk_MINIMAL) {
2770
ap_add_version_component(pconf, AP_SERVER_BASEVERSION);
2772
else if (ap_server_tokens == SrvTk_MINOR) {
2773
ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MINORREVISION);
2775
else if (ap_server_tokens == SrvTk_MAJOR) {
2776
ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MAJORVERSION);
2779
ap_add_version_component(pconf, AP_SERVER_BASEVERSION " (" PLATFORM ")");
2783
* Lock the server_version string if we're not displaying
2784
* the full set of tokens
2786
if (ap_server_tokens != SrvTk_FULL) {
2791
static const char *set_serv_tokens(cmd_parms *cmd, void *dummy,
2794
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2800
if (!strcasecmp(arg, "OS")) {
2801
ap_server_tokens = SrvTk_OS;
2803
else if (!strcasecmp(arg, "Min") || !strcasecmp(arg, "Minimal")) {
2804
ap_server_tokens = SrvTk_MINIMAL;
2806
else if (!strcasecmp(arg, "Major")) {
2807
ap_server_tokens = SrvTk_MAJOR;
2809
else if (!strcasecmp(arg, "Minor") ) {
2810
ap_server_tokens = SrvTk_MINOR;
2812
else if (!strcasecmp(arg, "Prod") || !strcasecmp(arg, "ProductOnly")) {
2813
ap_server_tokens = SrvTk_PRODUCT_ONLY;
2816
ap_server_tokens = SrvTk_FULL;
2822
static const char *set_limit_req_line(cmd_parms *cmd, void *dummy,
2825
const char *err = ap_check_cmd_context(cmd,
2826
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2835
return apr_pstrcat(cmd->temp_pool, "LimitRequestLine \"", arg,
2836
"\" must be a non-negative integer", NULL);
2839
cmd->server->limit_req_line = lim;
2843
static const char *set_limit_req_fieldsize(cmd_parms *cmd, void *dummy,
2846
const char *err = ap_check_cmd_context(cmd,
2847
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2856
return apr_pstrcat(cmd->temp_pool, "LimitRequestFieldsize \"", arg,
2857
"\" must be a non-negative integer",
2861
cmd->server->limit_req_fieldsize = lim;
2865
static const char *set_limit_req_fields(cmd_parms *cmd, void *dummy,
2868
const char *err = ap_check_cmd_context(cmd,
2869
NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2878
return apr_pstrcat(cmd->temp_pool, "LimitRequestFields \"", arg,
2879
"\" must be a non-negative integer (0 = no limit)",
2883
cmd->server->limit_req_fields = lim;
2887
static const char *set_limit_req_body(cmd_parms *cmd, void *conf_,
2890
core_dir_config *conf = conf_;
2891
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2898
if (APR_SUCCESS != apr_strtoff(&conf->limit_req_body, arg, &errp, 10)) {
2899
return "LimitRequestBody argument is not parsable.";
2901
if (*errp || conf->limit_req_body < 0) {
2902
return "LimitRequestBody requires a non-negative integer.";
2908
static const char *set_limit_xml_req_body(cmd_parms *cmd, void *conf_,
2911
core_dir_config *conf = conf_;
2912
const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2918
conf->limit_xml_body = atol(arg);
2919
if (conf->limit_xml_body < 0)
2920
return "LimitXMLRequestBody requires a non-negative integer.";
2925
AP_DECLARE(size_t) ap_get_limit_xml_body(const request_rec *r)
2927
core_dir_config *conf;
2929
conf = ap_get_module_config(r->per_dir_config, &core_module);
2930
if (conf->limit_xml_body == AP_LIMIT_UNSET)
2931
return AP_DEFAULT_LIMIT_XML_BODY;
2933
return (size_t)conf->limit_xml_body;
2936
#if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC)
2937
static const char *no_set_limit(cmd_parms *cmd, void *conf_,
2938
const char *arg, const char *arg2)
2940
ap_log_error(APLOG_MARK, APLOG_ERR, 0, cmd->server,
2941
"%s not supported on this platform", cmd->cmd->name);
2948
static const char *set_limit_cpu(cmd_parms *cmd, void *conf_,
2949
const char *arg, const char *arg2)
2951
core_dir_config *conf = conf_;
2953
unixd_set_rlimit(cmd, &conf->limit_cpu, arg, arg2, RLIMIT_CPU);
2958
#if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)
2959
static const char *set_limit_mem(cmd_parms *cmd, void *conf_,
2960
const char *arg, const char * arg2)
2962
core_dir_config *conf = conf_;
2964
#if defined(RLIMIT_AS)
2965
unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2 ,RLIMIT_AS);
2966
#elif defined(RLIMIT_DATA)
2967
unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_DATA);
2968
#elif defined(RLIMIT_VMEM)
2969
unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_VMEM);
2977
static const char *set_limit_nproc(cmd_parms *cmd, void *conf_,
2978
const char *arg, const char * arg2)
2980
core_dir_config *conf = conf_;
2982
unixd_set_rlimit(cmd, &conf->limit_nproc, arg, arg2, RLIMIT_NPROC);
2987
static const char *set_recursion_limit(cmd_parms *cmd, void *dummy,
2988
const char *arg1, const char *arg2)
2990
core_server_config *conf = ap_get_module_config(cmd->server->module_config,
2992
int limit = atoi(arg1);
2995
return "The recursion limit must be greater than zero.";
2998
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
2999
"Limiting internal redirects to very low numbers may "
3000
"cause normal requests to fail.");
3003
conf->redirect_limit = limit;
3009
return "The recursion limit must be greater than zero.";
3012
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
3013
"Limiting the subrequest depth to a very low level may"
3014
" cause normal requests to fail.");
3018
conf->subreq_limit = limit;
3023
static void log_backtrace(const request_rec *r)
3025
const request_rec *top = r;
3027
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
3028
"r->uri = %s", r->uri ? r->uri : "(unexpectedly NULL)");
3030
while (top && (top->prev || top->main)) {
3033
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
3034
"redirected from r->uri = %s",
3035
top->uri ? top->uri : "(unexpectedly NULL)");
3038
if (!top->prev && top->main) {
3040
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
3041
"subrequested from r->uri = %s",
3042
top->uri ? top->uri : "(unexpectedly NULL)");
3048
* check whether redirect limit is reached
3050
AP_DECLARE(int) ap_is_recursion_limit_exceeded(const request_rec *r)
3052
core_server_config *conf = ap_get_module_config(r->server->module_config,
3054
const request_rec *top = r;
3055
int redirects = 0, subreqs = 0;
3056
int rlimit = conf->redirect_limit
3057
? conf->redirect_limit
3058
: AP_DEFAULT_MAX_INTERNAL_REDIRECTS;
3059
int slimit = conf->subreq_limit
3060
? conf->subreq_limit
3061
: AP_DEFAULT_MAX_SUBREQ_DEPTH;
3064
while (top->prev || top->main) {
3066
if (++redirects >= rlimit) {
3067
/* uuh, too much. */
3068
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3069
"Request exceeded the limit of %d internal "
3070
"redirects due to probable configuration error. "
3071
"Use 'LimitInternalRecursion' to increase the "
3072
"limit if necessary. Use 'LogLevel debug' to get "
3073
"a backtrace.", rlimit);
3075
/* post backtrace */
3078
/* return failure */
3085
if (!top->prev && top->main) {
3086
if (++subreqs >= slimit) {
3087
/* uuh, too much. */
3088
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3089
"Request exceeded the limit of %d subrequest "
3090
"nesting levels due to probable confguration "
3091
"error. Use 'LimitInternalRecursion' to increase "
3092
"the limit if necessary. Use 'LogLevel debug' to "
3093
"get a backtrace.", slimit);
3095
/* post backtrace */
3098
/* return failure */
3106
/* recursion state: ok */
3110
static const char *add_ct_output_filters(cmd_parms *cmd, void *conf_,
3111
const char *arg, const char *arg2)
3113
core_dir_config *conf = conf_;
3114
ap_filter_rec_t *old, *new = NULL;
3115
const char *filter_name;
3117
if (!conf->ct_output_filters) {
3118
conf->ct_output_filters = apr_hash_make(cmd->pool);
3122
old = (ap_filter_rec_t*) apr_hash_get(conf->ct_output_filters, arg2,
3123
APR_HASH_KEY_STRING);
3124
/* find last entry */
3133
(filter_name = ap_getword(cmd->pool, &arg, ';')) &&
3134
strcmp(filter_name, "")) {
3135
new = apr_pcalloc(cmd->pool, sizeof(ap_filter_rec_t));
3136
new->name = filter_name;
3138
/* We found something, so let's append it. */
3143
apr_hash_set(conf->ct_output_filters, arg2,
3144
APR_HASH_KEY_STRING, new);
3150
return "invalid filter name";
3156
* Insert filters requested by the AddOutputFilterByType
3157
* configuration directive. We cannot add filters based
3158
* on content-type until after the handler has started
3159
* to run. Only then do we reliably know the content-type.
3161
void ap_add_output_filters_by_type(request_rec *r)
3163
core_dir_config *conf;
3166
conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
3169
/* We can't do anything with no content-type or if we don't have a
3170
* filter configured.
3172
if (!r->content_type || !conf->ct_output_filters) {
3176
/* remove c-t decoration */
3177
ctype = ap_field_noparam(r->pool, r->content_type);
3179
ap_filter_rec_t *ct_filter;
3180
ct_filter = apr_hash_get(conf->ct_output_filters, ctype,
3181
APR_HASH_KEY_STRING);
3183
ap_add_output_filter(ct_filter->name, NULL, r, r->connection);
3184
ct_filter = ct_filter->next;
3191
static const char *set_trace_enable(cmd_parms *cmd, void *dummy,
3194
core_server_config *conf = ap_get_module_config(cmd->server->module_config,
3197
if (strcasecmp(arg1, "on") == 0) {
3198
conf->trace_enable = AP_TRACE_ENABLE;
3200
else if (strcasecmp(arg1, "off") == 0) {
3201
conf->trace_enable = AP_TRACE_DISABLE;
3203
else if (strcasecmp(arg1, "extended") == 0) {
3204
conf->trace_enable = AP_TRACE_EXTENDED;
3207
return "TraceEnable must be one of 'on', 'off', or 'extended'";
3213
/* Note --- ErrorDocument will now work from .htaccess files.
3214
* The AllowOverride of Fileinfo allows webmasters to turn it off
3217
static const command_rec core_cmds[] = {
3219
/* Old access config file commands */
3221
AP_INIT_RAW_ARGS("<Directory", dirsection, NULL, RSRC_CONF,
3222
"Container for directives affecting resources located in the specified "
3224
AP_INIT_RAW_ARGS("<Location", urlsection, NULL, RSRC_CONF,
3225
"Container for directives affecting resources accessed through the "
3226
"specified URL paths"),
3227
AP_INIT_RAW_ARGS("<VirtualHost", virtualhost_section, NULL, RSRC_CONF,
3228
"Container to map directives to a particular virtual host, takes one or "
3229
"more host addresses"),
3230
AP_INIT_RAW_ARGS("<Files", filesection, NULL, OR_ALL,
3231
"Container for directives affecting files matching specified patterns"),
3232
AP_INIT_RAW_ARGS("<Limit", ap_limit_section, NULL, OR_ALL,
3233
"Container for authentication directives when accessed using specified HTTP "
3235
AP_INIT_RAW_ARGS("<LimitExcept", ap_limit_section, (void*)1, OR_ALL,
3236
"Container for authentication directives to be applied when any HTTP "
3237
"method other than those specified is used to access the resource"),
3238
AP_INIT_TAKE1("<IfModule", start_ifmod, NULL, EXEC_ON_READ | OR_ALL,
3239
"Container for directives based on existance of specified modules"),
3240
AP_INIT_TAKE1("<IfDefine", start_ifdefine, NULL, EXEC_ON_READ | OR_ALL,
3241
"Container for directives based on existance of command line defines"),
3242
AP_INIT_RAW_ARGS("<DirectoryMatch", dirsection, (void*)1, RSRC_CONF,
3243
"Container for directives affecting resources located in the "
3244
"specified directories"),
3245
AP_INIT_RAW_ARGS("<LocationMatch", urlsection, (void*)1, RSRC_CONF,
3246
"Container for directives affecting resources accessed through the "
3247
"specified URL paths"),
3248
AP_INIT_RAW_ARGS("<FilesMatch", filesection, (void*)1, OR_ALL,
3249
"Container for directives affecting files matching specified patterns"),
3250
AP_INIT_TAKE1("AuthType", ap_set_string_slot,
3251
(void*)APR_OFFSETOF(core_dir_config, ap_auth_type), OR_AUTHCFG,
3252
"An HTTP authorization type (e.g., \"Basic\")"),
3253
AP_INIT_TAKE1("AuthName", set_authname, NULL, OR_AUTHCFG,
3254
"The authentication realm (e.g. \"Members Only\")"),
3255
AP_INIT_RAW_ARGS("Require", require, NULL, OR_AUTHCFG,
3256
"Selects which authenticated users or groups may access a protected space"),
3257
AP_INIT_TAKE1("Satisfy", satisfy, NULL, OR_AUTHCFG,
3258
"access policy if both allow and require used ('all' or 'any')"),
3260
AP_INIT_TAKE1("GprofDir", set_gprof_dir, NULL, RSRC_CONF,
3261
"Directory to plop gmon.out files"),
3263
AP_INIT_TAKE1("AddDefaultCharset", set_add_default_charset, NULL, OR_FILEINFO,
3264
"The name of the default charset to add to any Content-Type without one or 'Off' to disable"),
3265
AP_INIT_TAKE1("AcceptPathInfo", set_accept_path_info, NULL, OR_FILEINFO,
3266
"Set to on or off for PATH_INFO to be accepted by handlers, or default for the per-handler preference"),
3268
/* Old resource config file commands */
3270
AP_INIT_RAW_ARGS("AccessFileName", set_access_name, NULL, RSRC_CONF,
3271
"Name(s) of per-directory config files (default: .htaccess)"),
3272
AP_INIT_TAKE1("DocumentRoot", set_document_root, NULL, RSRC_CONF,
3273
"Root directory of the document tree"),
3274
AP_INIT_TAKE2("ErrorDocument", set_error_document, NULL, OR_FILEINFO,
3275
"Change responses for HTTP errors"),
3276
AP_INIT_RAW_ARGS("AllowOverride", set_override, NULL, ACCESS_CONF,
3277
"Controls what groups of directives can be configured by per-directory "
3279
AP_INIT_RAW_ARGS("Options", set_options, NULL, OR_OPTIONS,
3280
"Set a number of attributes for a given directory"),
3281
AP_INIT_TAKE1("DefaultType", ap_set_string_slot,
3282
(void*)APR_OFFSETOF(core_dir_config, ap_default_type),
3283
OR_FILEINFO, "the default MIME type for untypable files"),
3284
AP_INIT_RAW_ARGS("FileETag", set_etag_bits, NULL, OR_FILEINFO,
3285
"Specify components used to construct a file's ETag"),
3286
AP_INIT_TAKE1("EnableMMAP", set_enable_mmap, NULL, OR_FILEINFO,
3287
"Controls whether memory-mapping may be used to read files"),
3288
AP_INIT_TAKE1("EnableSendfile", set_enable_sendfile, NULL, OR_FILEINFO,
3289
"Controls whether sendfile may be used to transmit files"),
3291
/* Old server config file commands */
3293
AP_INIT_TAKE1("Protocol", set_protocol, NULL, RSRC_CONF,
3294
"Set the Protocol for httpd to use."),
3295
AP_INIT_TAKE2("AcceptFilter", set_accf_map, NULL, RSRC_CONF,
3296
"Set the Accept Filter to use for a protocol"),
3297
AP_INIT_TAKE1("Port", ap_set_deprecated, NULL, RSRC_CONF,
3298
"Port was replaced with Listen in Apache 2.0"),
3299
AP_INIT_TAKE1("HostnameLookups", set_hostname_lookups, NULL,
3300
ACCESS_CONF|RSRC_CONF,
3301
"\"on\" to enable, \"off\" to disable reverse DNS lookups, or \"double\" to "
3302
"enable double-reverse DNS lookups"),
3303
AP_INIT_TAKE1("ServerAdmin", set_server_string_slot,
3304
(void *)APR_OFFSETOF(server_rec, server_admin), RSRC_CONF,
3305
"The email address of the server administrator"),
3306
AP_INIT_TAKE1("ServerName", server_hostname_port, NULL, RSRC_CONF,
3307
"The hostname and port of the server"),
3308
AP_INIT_TAKE1("ServerSignature", set_signature_flag, NULL, OR_ALL,
3309
"En-/disable server signature (on|off|email)"),
3310
AP_INIT_TAKE1("ServerRoot", set_server_root, NULL, RSRC_CONF | EXEC_ON_READ,
3311
"Common directory of server-related files (logs, confs, etc.)"),
3312
AP_INIT_TAKE1("ErrorLog", set_server_string_slot,
3313
(void *)APR_OFFSETOF(server_rec, error_fname), RSRC_CONF,
3314
"The filename of the error log"),
3315
AP_INIT_RAW_ARGS("ServerAlias", set_server_alias, NULL, RSRC_CONF,
3316
"A name or names alternately used to access the server"),
3317
AP_INIT_TAKE1("ServerPath", set_serverpath, NULL, RSRC_CONF,
3318
"The pathname the server can be reached at"),
3319
AP_INIT_TAKE1("Timeout", set_timeout, NULL, RSRC_CONF,
3320
"Timeout duration (sec)"),
3321
AP_INIT_FLAG("ContentDigest", set_content_md5, NULL, OR_OPTIONS,
3322
"whether or not to send a Content-MD5 header with each request"),
3323
AP_INIT_TAKE1("UseCanonicalName", set_use_canonical_name, NULL,
3324
RSRC_CONF|ACCESS_CONF,
3325
"How to work out the ServerName : Port when constructing URLs"),
3326
AP_INIT_TAKE1("UseCanonicalPhysicalPort", set_use_canonical_phys_port, NULL,
3327
RSRC_CONF|ACCESS_CONF,
3328
"Whether to use the physical Port when constructing URLs"),
3329
/* TODO: RlimitFoo should all be part of mod_cgi, not in the core */
3330
/* TODO: ListenBacklog in MPM */
3331
AP_INIT_TAKE1("Include", include_config, NULL,
3332
(RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
3333
"Name of the config file to be included"),
3334
AP_INIT_TAKE1("LogLevel", set_loglevel, NULL, RSRC_CONF,
3335
"Level of verbosity in error logging"),
3336
AP_INIT_TAKE1("NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF,
3337
"A numeric IP address:port, or the name of a host"),
3338
AP_INIT_TAKE1("ServerTokens", set_serv_tokens, NULL, RSRC_CONF,
3339
"Determine tokens displayed in the Server: header - Min(imal), OS or Full"),
3340
AP_INIT_TAKE1("LimitRequestLine", set_limit_req_line, NULL, RSRC_CONF,
3341
"Limit on maximum size of an HTTP request line"),
3342
AP_INIT_TAKE1("LimitRequestFieldsize", set_limit_req_fieldsize, NULL,
3344
"Limit on maximum size of an HTTP request header field"),
3345
AP_INIT_TAKE1("LimitRequestFields", set_limit_req_fields, NULL, RSRC_CONF,
3346
"Limit (0 = unlimited) on max number of header fields in a request message"),
3347
AP_INIT_TAKE1("LimitRequestBody", set_limit_req_body,
3348
(void*)APR_OFFSETOF(core_dir_config, limit_req_body), OR_ALL,
3349
"Limit (in bytes) on maximum size of request message body"),
3350
AP_INIT_TAKE1("LimitXMLRequestBody", set_limit_xml_req_body, NULL, OR_ALL,
3351
"Limit (in bytes) on maximum size of an XML-based request "
3354
/* System Resource Controls */
3356
AP_INIT_TAKE12("RLimitCPU", set_limit_cpu,
3357
(void*)APR_OFFSETOF(core_dir_config, limit_cpu),
3358
OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
3360
AP_INIT_TAKE12("RLimitCPU", no_set_limit, NULL,
3361
OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
3363
#if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined (RLIMIT_AS)
3364
AP_INIT_TAKE12("RLimitMEM", set_limit_mem,
3365
(void*)APR_OFFSETOF(core_dir_config, limit_mem),
3366
OR_ALL, "Soft/hard limits for max memory usage per process"),
3368
AP_INIT_TAKE12("RLimitMEM", no_set_limit, NULL,
3369
OR_ALL, "Soft/hard limits for max memory usage per process"),
3372
AP_INIT_TAKE12("RLimitNPROC", set_limit_nproc,
3373
(void*)APR_OFFSETOF(core_dir_config, limit_nproc),
3374
OR_ALL, "soft/hard limits for max number of processes per uid"),
3376
AP_INIT_TAKE12("RLimitNPROC", no_set_limit, NULL,
3377
OR_ALL, "soft/hard limits for max number of processes per uid"),
3380
/* internal recursion stopper */
3381
AP_INIT_TAKE12("LimitInternalRecursion", set_recursion_limit, NULL, RSRC_CONF,
3382
"maximum recursion depth of internal redirects and subrequests"),
3384
AP_INIT_TAKE1("ForceType", ap_set_string_slot_lower,
3385
(void *)APR_OFFSETOF(core_dir_config, mime_type), OR_FILEINFO,
3386
"a mime type that overrides other configured type"),
3387
AP_INIT_TAKE1("SetHandler", ap_set_string_slot_lower,
3388
(void *)APR_OFFSETOF(core_dir_config, handler), OR_FILEINFO,
3389
"a handler name that overrides any other configured handler"),
3390
AP_INIT_TAKE1("SetOutputFilter", ap_set_string_slot,
3391
(void *)APR_OFFSETOF(core_dir_config, output_filters), OR_FILEINFO,
3392
"filter (or ; delimited list of filters) to be run on the request content"),
3393
AP_INIT_TAKE1("SetInputFilter", ap_set_string_slot,
3394
(void *)APR_OFFSETOF(core_dir_config, input_filters), OR_FILEINFO,
3395
"filter (or ; delimited list of filters) to be run on the request body"),
3396
AP_INIT_ITERATE2("AddOutputFilterByType", add_ct_output_filters,
3397
(void *)APR_OFFSETOF(core_dir_config, ct_output_filters), OR_FILEINFO,
3398
"output filter name followed by one or more content-types"),
3399
AP_INIT_FLAG("AllowEncodedSlashes", set_allow2f, NULL, RSRC_CONF,
3400
"Allow URLs containing '/' encoded as '%2F'"),
3403
* These are default configuration directives that mpms can/should
3404
* pay attention to. If an mpm wishes to use these, they should
3405
* #defined them in mpm.h.
3407
#ifdef AP_MPM_WANT_SET_PIDFILE
3408
AP_INIT_TAKE1("PidFile", ap_mpm_set_pidfile, NULL, RSRC_CONF,
3409
"A file for logging the server process ID"),
3411
#ifdef AP_MPM_WANT_SET_SCOREBOARD
3412
AP_INIT_TAKE1("ScoreBoardFile", ap_mpm_set_scoreboard, NULL, RSRC_CONF,
3413
"A file for Apache to maintain runtime process management information"),
3415
#ifdef AP_MPM_WANT_SET_LOCKFILE
3416
AP_INIT_TAKE1("LockFile", ap_mpm_set_lockfile, NULL, RSRC_CONF,
3417
"The lockfile used when Apache needs to lock the accept() call"),
3419
#ifdef AP_MPM_WANT_SET_MAX_REQUESTS
3420
AP_INIT_TAKE1("MaxRequestsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,
3421
"Maximum number of requests a particular child serves before dying."),
3423
#ifdef AP_MPM_WANT_SET_COREDUMPDIR
3424
AP_INIT_TAKE1("CoreDumpDirectory", ap_mpm_set_coredumpdir, NULL, RSRC_CONF,
3425
"The location of the directory Apache changes to before dumping core"),
3427
#ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH
3428
AP_INIT_TAKE1("AcceptMutex", ap_mpm_set_accept_lock_mech, NULL, RSRC_CONF,
3429
ap_valid_accept_mutex_string),
3431
#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE
3432
AP_INIT_TAKE1("MaxMemFree", ap_mpm_set_max_mem_free, NULL, RSRC_CONF,
3433
"Maximum number of 1k blocks a particular childs allocator may hold."),
3435
#ifdef AP_MPM_WANT_SET_STACKSIZE
3436
AP_INIT_TAKE1("ThreadStackSize", ap_mpm_set_thread_stacksize, NULL, RSRC_CONF,
3437
"Size in bytes of stack used by threads handling client connections"),
3439
#if AP_ENABLE_EXCEPTION_HOOK
3440
AP_INIT_TAKE1("EnableExceptionHook", ap_mpm_set_exception_hook, NULL, RSRC_CONF,
3441
"Controls whether exception hook may be called after a crash"),
3443
AP_INIT_TAKE1("TraceEnable", set_trace_enable, NULL, RSRC_CONF,
3444
"'on' (default), 'off' or 'extended' to trace request body content"),
3448
/*****************************************************************
3450
* Core handlers for various phases of server operation...
3453
AP_DECLARE_NONSTD(int) ap_core_translate(request_rec *r)
3455
void *sconf = r->server->module_config;
3456
core_server_config *conf = ap_get_module_config(sconf, &core_module);
3459
/* XXX this seems too specific, this should probably become
3460
* some general-case test
3463
return HTTP_FORBIDDEN;
3465
if (!r->uri || ((r->uri[0] != '/') && strcmp(r->uri, "*"))) {
3466
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3467
"Invalid URI in request %s", r->the_request);
3468
return HTTP_BAD_REQUEST;
3472
&& !strncmp(r->uri, r->server->path, r->server->pathlen)
3473
&& (r->server->path[r->server->pathlen - 1] == '/'
3474
|| r->uri[r->server->pathlen] == '/'
3475
|| r->uri[r->server->pathlen] == '\0'))
3477
/* skip all leading /'s (e.g. http://localhost///foo)
3478
* so we are looking at only the relative path.
3480
char *path = r->uri + r->server->pathlen;
3481
while (*path == '/') {
3484
if ((rv = apr_filepath_merge(&r->filename, conf->ap_document_root, path,
3485
APR_FILEPATH_TRUENAME
3486
| APR_FILEPATH_SECUREROOT, r->pool))
3488
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
3489
"Cannot map %s to file", r->the_request);
3490
return HTTP_FORBIDDEN;
3492
r->canonical_filename = r->filename;
3496
* Make sure that we do not mess up the translation by adding two
3497
* /'s in a row. This happens under windows when the document
3498
* root ends with a /
3500
/* skip all leading /'s (e.g. http://localhost///foo)
3501
* so we are looking at only the relative path.
3503
char *path = r->uri;
3504
while (*path == '/') {
3507
if ((rv = apr_filepath_merge(&r->filename, conf->ap_document_root, path,
3508
APR_FILEPATH_TRUENAME
3509
| APR_FILEPATH_SECUREROOT, r->pool))
3511
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
3512
"Cannot map %s to file", r->the_request);
3513
return HTTP_FORBIDDEN;
3515
r->canonical_filename = r->filename;
3521
/*****************************************************************
3523
* Test the filesystem name through directory_walk and file_walk
3525
static int core_map_to_storage(request_rec *r)
3529
if ((access_status = ap_directory_walk(r))) {
3530
return access_status;
3533
if ((access_status = ap_file_walk(r))) {
3534
return access_status;
3541
static int do_nothing(request_rec *r) { return OK; }
3544
static int core_override_type(request_rec *r)
3546
core_dir_config *conf =
3547
(core_dir_config *)ap_get_module_config(r->per_dir_config,
3550
/* Check for overrides with ForceType / SetHandler
3552
if (conf->mime_type && strcmp(conf->mime_type, "none"))
3553
ap_set_content_type(r, (char*) conf->mime_type);
3555
if (conf->handler && strcmp(conf->handler, "none"))
3556
r->handler = conf->handler;
3558
/* Deal with the poor soul who is trying to force path_info to be
3559
* accepted within the core_handler, where they will let the subreq
3560
* address its contents. This is toggled by the user in the very
3561
* beginning of the fixup phase, so modules should override the user's
3562
* discretion in their own module fixup phase. It is tristate, if
3563
* the user doesn't specify, the result is 2 (which the module may
3564
* interpret to its own customary behavior.) It won't be touched
3565
* if the value is no longer undefined (2), so any module changing
3566
* the value prior to the fixup phase OVERRIDES the user's choice.
3568
if ((r->used_path_info == AP_REQ_DEFAULT_PATH_INFO)
3569
&& (conf->accept_path_info != 3)) {
3570
r->used_path_info = conf->accept_path_info;
3576
static int default_handler(request_rec *r)
3578
conn_rec *c = r->connection;
3579
apr_bucket_brigade *bb;
3583
apr_file_t *fd = NULL;
3584
apr_status_t status;
3585
/* XXX if/when somebody writes a content-md5 filter we either need to
3586
* remove this support or coordinate when to use the filter vs.
3587
* when to use this code
3588
* The current choice of when to compute the md5 here matches the 1.3
3589
* support fairly closely (unlike 1.3, we don't handle computing md5
3590
* when the charset is translated).
3592
int bld_content_md5;
3594
d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
3596
bld_content_md5 = (d->content_md5 & 1)
3597
&& r->output_filters->frec->ftype != AP_FTYPE_RESOURCE;
3599
ap_allow_standard_methods(r, MERGE_ALLOW, M_GET, M_OPTIONS, M_POST, -1);
3601
/* If filters intend to consume the request body, they must
3602
* register an InputFilter to slurp the contents of the POST
3603
* data from the POST input stream. It no longer exists when
3604
* the output filters are invoked by the default handler.
3606
if ((errstatus = ap_discard_request_body(r)) != OK) {
3610
if (r->method_number == M_GET || r->method_number == M_POST) {
3611
if (r->finfo.filetype == 0) {
3612
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3613
"File does not exist: %s", r->filename);
3614
return HTTP_NOT_FOUND;
3617
/* Don't try to serve a dir. Some OSs do weird things with
3620
if (r->finfo.filetype == APR_DIR) {
3621
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3622
"Attempt to serve directory: %s", r->filename);
3623
return HTTP_NOT_FOUND;
3626
if ((r->used_path_info != AP_REQ_ACCEPT_PATH_INFO) &&
3627
r->path_info && *r->path_info)
3629
/* default to reject */
3630
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3631
"File does not exist: %s",
3632
apr_pstrcat(r->pool, r->filename, r->path_info, NULL));
3633
return HTTP_NOT_FOUND;
3636
/* We understood the (non-GET) method, but it might not be legal for
3637
this particular resource. Check to see if the 'deliver_script'
3638
flag is set. If so, then we go ahead and deliver the file since
3639
it isn't really content (only GET normally returns content).
3641
Note: based on logic further above, the only possible non-GET
3642
method at this point is POST. In the future, we should enable
3643
script delivery for all methods. */
3644
if (r->method_number != M_GET) {
3645
core_request_config *req_cfg;
3647
req_cfg = ap_get_module_config(r->request_config, &core_module);
3648
if (!req_cfg->deliver_script) {
3649
/* The flag hasn't been set for this request. Punt. */
3650
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3651
"This resource does not accept the %s method.",
3653
return HTTP_METHOD_NOT_ALLOWED;
3658
if ((status = apr_file_open(&fd, r->filename, APR_READ | APR_BINARY
3659
#if APR_HAS_SENDFILE
3660
| ((d->enable_sendfile == ENABLE_SENDFILE_OFF)
3661
? 0 : APR_SENDFILE_ENABLED)
3663
, 0, r->pool)) != APR_SUCCESS) {
3664
ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r,
3665
"file permissions deny server access: %s", r->filename);
3666
return HTTP_FORBIDDEN;
3669
ap_update_mtime(r, r->finfo.mtime);
3670
ap_set_last_modified(r);
3672
apr_table_setn(r->headers_out, "Accept-Ranges", "bytes");
3673
ap_set_content_length(r, r->finfo.size);
3675
bb = apr_brigade_create(r->pool, c->bucket_alloc);
3677
if ((errstatus = ap_meets_conditions(r)) != OK) {
3679
r->status = errstatus;
3682
if (bld_content_md5) {
3683
apr_table_setn(r->headers_out, "Content-MD5",
3684
ap_md5digest(r->pool, fd));
3687
/* For platforms where the size of the file may be larger than
3688
* that which can be stored in a single bucket (where the
3689
* length field is an apr_size_t), split it into several
3691
if (sizeof(apr_off_t) > sizeof(apr_size_t)
3692
&& r->finfo.size > AP_MAX_SENDFILE) {
3693
apr_off_t fsize = r->finfo.size;
3694
e = apr_bucket_file_create(fd, 0, AP_MAX_SENDFILE, r->pool,
3696
while (fsize > AP_MAX_SENDFILE) {
3698
apr_bucket_copy(e, &ce);
3699
APR_BRIGADE_INSERT_TAIL(bb, ce);
3700
e->start += AP_MAX_SENDFILE;
3701
fsize -= AP_MAX_SENDFILE;
3703
e->length = (apr_size_t)fsize; /* Resize just the last bucket */
3706
e = apr_bucket_file_create(fd, 0, (apr_size_t)r->finfo.size,
3707
r->pool, c->bucket_alloc);
3711
if (d->enable_mmap == ENABLE_MMAP_OFF) {
3712
(void)apr_bucket_file_enable_mmap(e, 0);
3715
APR_BRIGADE_INSERT_TAIL(bb, e);
3718
e = apr_bucket_eos_create(c->bucket_alloc);
3719
APR_BRIGADE_INSERT_TAIL(bb, e);
3721
status = ap_pass_brigade(r->output_filters, bb);
3722
if (status == APR_SUCCESS
3723
|| r->status != HTTP_OK
3728
/* no way to know what type of error occurred */
3729
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, status, r,
3730
"default_handler: ap_pass_brigade returned %i",
3732
return HTTP_INTERNAL_SERVER_ERROR;
3735
else { /* unusual method (not GET or POST) */
3736
if (r->method_number == M_INVALID) {
3737
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3738
"Invalid method in request %s", r->the_request);
3739
return HTTP_NOT_IMPLEMENTED;
3742
if (r->method_number == M_OPTIONS) {
3743
return ap_send_http_options(r);
3745
return HTTP_METHOD_NOT_ALLOWED;
3749
/* Optional function coming from mod_logio, used for logging of output
3752
APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *logio_add_bytes_out;
3754
static int core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
3756
logio_add_bytes_out = APR_RETRIEVE_OPTIONAL_FN(ap_logio_add_bytes_out);
3757
ident_lookup = APR_RETRIEVE_OPTIONAL_FN(ap_ident_lookup);
3759
ap_set_version(pconf);
3760
ap_setup_make_content_type(pconf);
3764
static void core_insert_filter(request_rec *r)
3766
core_dir_config *conf = (core_dir_config *)
3767
ap_get_module_config(r->per_dir_config,
3769
const char *filter, *filters = conf->output_filters;
3772
while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
3773
ap_add_output_filter(filter, NULL, r, r->connection);
3777
filters = conf->input_filters;
3779
while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
3780
ap_add_input_filter(filter, NULL, r, r->connection);
3785
static apr_size_t num_request_notes = AP_NUM_STD_NOTES;
3787
static apr_status_t reset_request_notes(void *dummy)
3789
num_request_notes = AP_NUM_STD_NOTES;
3793
AP_DECLARE(apr_size_t) ap_register_request_note(void)
3795
apr_pool_cleanup_register(apr_hook_global_pool, NULL, reset_request_notes,
3796
apr_pool_cleanup_null);
3797
return num_request_notes++;
3800
AP_DECLARE(void **) ap_get_request_note(request_rec *r, apr_size_t note_num)
3802
core_request_config *req_cfg;
3804
if (note_num >= num_request_notes) {
3808
req_cfg = (core_request_config *)
3809
ap_get_module_config(r->request_config, &core_module);
3815
return &(req_cfg->notes[note_num]);
3818
static int core_create_req(request_rec *r)
3820
/* Alloc the config struct and the array of request notes in
3821
* a single block for efficiency
3823
core_request_config *req_cfg;
3825
req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config) +
3826
sizeof(void *) * num_request_notes);
3827
req_cfg->notes = (void **)((char *)req_cfg + sizeof(core_request_config));
3829
/* ### temporarily enable script delivery as the default */
3830
req_cfg->deliver_script = 1;
3833
core_request_config *main_req_cfg = (core_request_config *)
3834
ap_get_module_config(r->main->request_config, &core_module);
3835
req_cfg->bb = main_req_cfg->bb;
3838
req_cfg->bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);
3841
ap_set_module_config(r->request_config, &core_module, req_cfg);
3846
static int core_create_proxy_req(request_rec *r, request_rec *pr)
3848
return core_create_req(pr);
3851
static conn_rec *core_create_conn(apr_pool_t *ptrans, server_rec *server,
3852
apr_socket_t *csd, long id, void *sbh,
3853
apr_bucket_alloc_t *alloc)
3856
conn_rec *c = (conn_rec *) apr_pcalloc(ptrans, sizeof(conn_rec));
3859
(void)ap_update_child_status(c->sbh, SERVER_BUSY_READ, (request_rec *)NULL);
3861
/* Got a connection structure, so initialize what fields we can
3862
* (the rest are zeroed out by pcalloc).
3864
c->conn_config = ap_create_conn_config(ptrans);
3865
c->notes = apr_table_make(ptrans, 5);
3868
if ((rv = apr_socket_addr_get(&c->local_addr, APR_LOCAL, csd))
3870
ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
3871
"apr_socket_addr_get(APR_LOCAL)");
3872
apr_socket_close(csd);
3876
apr_sockaddr_ip_get(&c->local_ip, c->local_addr);
3877
if ((rv = apr_socket_addr_get(&c->remote_addr, APR_REMOTE, csd))
3879
ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
3880
"apr_socket_addr_get(APR_REMOTE)");
3881
apr_socket_close(csd);
3885
apr_sockaddr_ip_get(&c->remote_ip, c->remote_addr);
3886
c->base_server = server;
3889
c->bucket_alloc = alloc;
3894
static int core_pre_connection(conn_rec *c, void *csd)
3896
core_net_rec *net = apr_palloc(c->pool, sizeof(*net));
3899
#ifdef AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK
3900
/* The Nagle algorithm says that we should delay sending partial
3901
* packets in hopes of getting more data. We don't want to do
3902
* this; we are not telnet. There are bad interactions between
3903
* persistent connections and Nagle's algorithm that have very severe
3904
* performance penalties. (Failing to disable Nagle is not much of a
3905
* problem with simple HTTP.)
3907
rv = apr_socket_opt_set(csd, APR_TCP_NODELAY, 1);
3908
if (rv != APR_SUCCESS && rv != APR_ENOTIMPL) {
3909
/* expected cause is that the client disconnected already,
3910
* hence the debug level
3912
ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c,
3913
"apr_socket_opt_set(APR_TCP_NODELAY)");
3917
/* The core filter requires the timeout mode to be set, which
3918
* incidentally sets the socket to be nonblocking. If this
3919
* is not initialized correctly, Linux - for example - will
3920
* be initially blocking, while Solaris will be non blocking
3921
* and any initial read will fail.
3923
rv = apr_socket_timeout_set(csd, c->base_server->timeout);
3924
if (rv != APR_SUCCESS) {
3925
/* expected cause is that the client disconnected already */
3926
ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c,
3927
"apr_socket_timeout_set");
3932
net->out_ctx = NULL;
3933
net->client_socket = csd;
3935
ap_set_module_config(net->c->conn_config, &core_module, csd);
3936
ap_add_input_filter_handle(ap_core_input_filter_handle, net, NULL, net->c);
3937
ap_add_output_filter_handle(ap_core_output_filter_handle, net, NULL, net->c);
3941
static void register_hooks(apr_pool_t *p)
3943
/* create_connection and install_transport_filters are
3944
* hooks that should always be APR_HOOK_REALLY_LAST to give other
3945
* modules the opportunity to install alternate network transports
3946
* and stop other functions from being run.
3948
ap_hook_create_connection(core_create_conn, NULL, NULL,
3949
APR_HOOK_REALLY_LAST);
3950
ap_hook_pre_connection(core_pre_connection, NULL, NULL,
3951
APR_HOOK_REALLY_LAST);
3953
ap_hook_post_config(core_post_config,NULL,NULL,APR_HOOK_REALLY_FIRST);
3954
ap_hook_translate_name(ap_core_translate,NULL,NULL,APR_HOOK_REALLY_LAST);
3955
ap_hook_map_to_storage(core_map_to_storage,NULL,NULL,APR_HOOK_REALLY_LAST);
3956
ap_hook_open_logs(ap_open_logs,NULL,NULL,APR_HOOK_REALLY_FIRST);
3957
ap_hook_child_init(ap_logs_child_init,NULL,NULL,APR_HOOK_MIDDLE);
3958
ap_hook_handler(default_handler,NULL,NULL,APR_HOOK_REALLY_LAST);
3959
/* FIXME: I suspect we can eliminate the need for these do_nothings - Ben */
3960
ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
3961
ap_hook_fixups(core_override_type,NULL,NULL,APR_HOOK_REALLY_FIRST);
3962
ap_hook_access_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
3963
ap_hook_create_request(core_create_req, NULL, NULL, APR_HOOK_MIDDLE);
3964
APR_OPTIONAL_HOOK(proxy, create_req, core_create_proxy_req, NULL, NULL,
3966
ap_hook_pre_mpm(ap_create_scoreboard, NULL, NULL, APR_HOOK_MIDDLE);
3968
/* register the core's insert_filter hook and register core-provided
3971
ap_hook_insert_filter(core_insert_filter, NULL, NULL, APR_HOOK_MIDDLE);
3973
ap_core_input_filter_handle =
3974
ap_register_input_filter("CORE_IN", ap_core_input_filter,
3975
NULL, AP_FTYPE_NETWORK);
3976
ap_content_length_filter_handle =
3977
ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter,
3978
NULL, AP_FTYPE_PROTOCOL);
3979
ap_core_output_filter_handle =
3980
ap_register_output_filter("CORE", ap_core_output_filter,
3981
NULL, AP_FTYPE_NETWORK);
3982
ap_subreq_core_filter_handle =
3983
ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter,
3984
NULL, AP_FTYPE_CONTENT_SET);
3986
ap_register_output_filter("OLD_WRITE", ap_old_write_filter,
3987
NULL, AP_FTYPE_RESOURCE - 10);
3990
AP_DECLARE_DATA module core_module = {
3991
STANDARD20_MODULE_STUFF,
3992
create_core_dir_config, /* create per-directory config structure */
3993
merge_core_dir_configs, /* merge per-directory config structures */
3994
create_core_server_config, /* create per-server config structure */
3995
merge_core_server_configs, /* merge per-server config structures */
3996
core_cmds, /* command apr_table_t */
3997
register_hooks /* register hooks */
added
removed
server/core.c
